Definition of odd in English:

odd

Pronunciation /äd/ /ɑd/

adjective

1Different from what is usual or expected; strange.
‘the neighbors thought him very odd’
with clause ‘it's odd that she didn't recognize me’
- ‘The graphics also seem very odd at times, it all looks lovely so long as you don't move.’
- ‘And there were a couple of things he said that certainly seem rather odd.’
- ‘Doesn't that seem rather odd that none of her colleagues would defend her?’
- ‘They think it's rather odd to be so highly involved in football and it's vice-versa.’
- ‘I find it very odd that individuals are against legislation of this sort.’
- ‘After a while she noticed something quite odd.’
- ‘Her decidedly odd looks are a major distraction whenever she is on screen.’
- ‘But in those areas where he did well, sometimes the numbers look decidedly odd.’
- ‘He reached into his pocket for his keys, and he noticed something odd.’
- ‘She thought it odd that Jake would do so many nice things for him.’
- ‘His arms and legs straightened out, no longer sticking out at odd angles.’
- ‘Images are made strange in her works by their changed contexts and odd juxtapositions.’
- ‘By an odd coincidence, she capped the marker just as he hung up the phone.’
- ‘She began to tremble violently as she felt an odd sensation come over her.’
- ‘Tel's fingers involuntarily clenched up as he felt the odd sensation once more.’
- ‘Back in the desert I had an odd sensation of riding into a landscape.’
- ‘The odd thing is that he did the interview at all, I think.’
- ‘The acting is strong, though odd at times.’
- ‘Sometimes I meet people in odd places and am surprised to learn that they are on their first overseas trip.’
- ‘Sunday was a nice lazy day, full of odd surprises and a few belly laughs.’
strange, peculiar, weird, queer, funny, bizarre, eccentric, unusual, abnormal, idiosyncratic, unconventional, outlandish, offbeat, freakish, quirky, quaint, zany, off-centre
strange, unusual, peculiar, funny, curious, bizarre, weird, uncanny, queer, unexpected, unfamiliar, abnormal, atypical, anomalous, untypical, different, out of the ordinary, out of the way, foreign, exceptional, rare, extraordinary, remarkable, puzzling, mystifying, mysterious, perplexing, baffling, unaccountable, incongruous, uncommon, irregular, singular, deviant, aberrant, freak, freakish
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2(of whole numbers such as 3 and 5) having one left over as a remainder when divided by two.
‘atoms which possess an odd number of electrons’
- ‘If the number in the second column is odd, divide it by two and drop the remainder.’
- ‘Notice that smoothing a crossing changes the number of components of a link by one and that multiplication by z switches odd and even polynomials.’
- ‘If you are taking half an odd number, use the integer quotient and ignore the remainder of 1.’
- ‘An odd perfect number is defined to be an odd integer that is equal to the sum of its proper divisors.’
- ‘The issue of odd perfect numbers remains unsettled, however.’
- ‘In it Vinogradov proved that every sufficiently large odd integer can be expressed as the sum of three primes.’
- ‘He stated that any even integer can be written as the sum of two primes and every odd integer is either a prime or the sum of three primes.’
- ‘Even integers in the top row correspond to throws from the right hand, and odd integers to throws from the left.’
- ‘In his talk, he gave an outline of some of Thompson's work, beginning with the odd order theorem of Feit and Thompson.’
- ‘Every even natural number x greater than six can be written as the sum of two distinct odd primes.’
- ‘Goldbach also conjectured that every odd number is the sum of three primes.’
- ‘Hence such graphs require n to be odd, and then for each axis there are n such graphs.’
- ‘If that number is odd, the last object will be a circle.’
- ‘When k is an integer there are k or 2k petals depending whether k is odd or even.’
- ‘I thought about the origin of all square numbers and discovered that they arose from the regular ascent of odd numbers.’
- ‘In every known pair, both numbers are even or both are odd.’
uneven, not divisible by two
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1. 2.1in combination In the region of or somewhat more than a particular number or quantity.
  ‘she looked younger than her fifty-odd years’
3attributive Happening or occurring infrequently and irregularly; occasional.
‘neither did she want a secret affair, snatching odd moments together’
- ‘The time saved by this happening far outweighs the odd occasion when someone does not leave it at the end of his drive.’
- ‘Truth be told, there are crowds of people who never drink, or who drink only on the odd occasion.’
- ‘We had the odd drink together but we didn't glam around.’
- ‘However, there is the occasional shock and the odd fleeting moment of interest as to who will be next for the chop.’
- ‘On the odd occasion that he's had a few to drink, I think he brings out the red suit and talks wistfully about his sleigh.’
- ‘And on the odd occasion Redfearn escaped the clutches of Bauress, Steve Hollis was on hand to look after the ex-Premiership star.’
- ‘On the odd occasion he might wish to be somewhere else.’
- ‘Sharp riffs that occasionally nick the odd melody.’
- ‘Fortunately, I am relatively immune from this in the middle of Bear Lane, although I occasionally hear the odd siren.’
- ‘I have to admit, I have milked my abilities on the odd occasion.’
- ‘And although the odd incident used to happen in the past, that number has increased with the number of activities in the area.’
- ‘I haven't been keeping up with his last few releases, although the odd track has occasionally grabbed my attention.’
- ‘They apologised as they fidgeted with the bags and behaved as well as they could but lost their nerve on the odd occasion.’
- ‘And, on the odd occasion, he has even been put in as an emergency centre-back.’
- ‘But on the odd occasion they venture outside these extremes, the country descends into chaos.’
- ‘However, they quickly dried in the sunshine with just the odd patch of mud remaining.’
- ‘I'm doing a small site on Ghost Buildings - a unimaginative term for the odd remainders left behind when a building goes down.’
- ‘In the meantime I am eating toast with marmalade every few minutes and the odd meal whenever I can face it.’
- ‘It showed as low tackle followed low tackle, followed by the odd flamboyant dive or five.’
- ‘Messi's account of his spare time includes nothing racier than PlayStation and the odd barbecue.’
occasional, casual, irregular, isolated, incidental, random, sporadic, seasonal, periodic, part-time
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1. 3.1Spare; unoccupied.
  ‘when you've got an odd five minutes, could I have a word?’
  ‘What you get are basically four fun, simple little games, that are great to come back to for the odd five minutes of playing.’
  ‘As such, there are worse ways to spend an odd thirty minutes or so.’
  spare, unoccupied, free, not committed, available
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4Separated from a usual pair or set and therefore out of place or mismatched.
‘he's wearing odd socks’
- ‘I've heard of sock heaven for odd socks, but there must be a bookmark heaven for missing bookmarks as I've lost heaps over the years.’
- ‘Your muddled brain, full of paperclips and odd socks and dirty cotton wool buds simply cannot function.’
- ‘I once wrote a manifesto for odd socks wearers on a post-it note.’
- ‘Ever wondered if all those forgotten passwords end up in the same place as those missing odd socks?’
- ‘The pace of events has slowed down and we take time for personal maintenance, like washing odd socks.’
- ‘But the forks they use will be an odd assortment of different sets.’
- ‘If the pans remain level, the odd coin is among the 13 set aside.’
mismatched, unmatched, unpaired
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Phrases

odd one (or man) out

A person or thing differing from all other members of a particular group or set in some way.
‘I hate being the odd one out among friends who are all couples’
‘in the case of the verb become, the odd one out is the past form’