Synonyms of lonely in English:

lonely


See US English definition of lonely

See UK English definition of lonely

See Spanish definition of solitario

adjective

1‘a sad and lonely man’

SYNONYMS
isolated, alone, all alone, friendless, companionless, without companions, without friends, with no one to turn to, outcast, forsaken, abandoned, rejected, unloved, unwanted
unpopular
sad, unhappy, forlorn, despondent
North American lonesome
ANTONYMS

popular

2‘the lonely life of a writer’

SYNONYMS
solitary, unaccompanied, alone, lone, by itself, by oneself, without companions, companionless
ANTONYMS

sociable

3‘a lonely road’

SYNONYMS
deserted, uninhabited, unfrequented, unpopulated, desolate, barren, isolated, remote, out of the way, secluded, sequestered, off the beaten track, in the back of beyond, in the middle of nowhere, godforsaken
literary lone
ANTONYMS

populous, crowded