Synonyms of suspicious in English:

suspicious


See US English definition of suspicious

See UK English definition of suspicious

See Spanish definition of desconfiado

adjective

1‘he was suspicious of all educational innovations’

SYNONYMS
doubtful, unsure, dubious, wary, chary, sceptical, distrustful, mistrustful, disbelieving, having reservations, apprehensive, cynical, jaundiced
informal iffy
ANTONYMS

trustful, trusting

2‘I think he's a highly suspicious character’

SYNONYMS
disreputable, unsavoury, dubious, suspect, guilty-looking, dishonest-looking, strange-looking, queer-looking, funny-looking, slippery
informal shifty, shady
British informal dodgy
ANTONYMS

upright

3‘his wife disappeared in suspicious circumstances’

SYNONYMS
questionable, odd, strange, dubious, irregular, queer, funny, doubtful, not quite right, under suspicion, mysterious, murky, dark, criminal, dishonest, corrupt
informal fishy, shady, dodgy
ANTONYMS

ordinary, innocent