Synonyms of unreliable in English:

unreliable


See definition of unreliable

adjective

1‘an unreliable group of volunteers’

SYNONYMS

undependable, untrustworthy, irresponsible, reckless, fickle, capricious, irregular, erratic, unpredictable, inconstant, mutable, faithless, untrue, flighty, slippery

ANTONYMS

reliable, steadfast

2‘unemployment can be an unreliable indicator of the tightness of labour markets’

SYNONYMS

questionable, open to question, open to doubt, doubtful, dubious, suspect, unsound, tenuous, flimsy, weak, unsubstantial, implausible, unconvincing, unsupported, unsubstantiated, fallible, shaky, rocky

risky, chancy, disreputable, specious, defective

inaccurate, vague, untrue, incorrect, wide of the mark, off-target, wrong

informal iffy, dicey

British informal dodgy

ANTONYMS

reliable, accurate