hard to believe (adjective) questionable: doubtful, uncertain
Detalii: questionable means open to doubt, disagreement, or challenge - or of dubious morality, honesty, or respectability; questioning (adjective) means showing curiosity or inquiring about - or (noun) an inquiry or interrogation
Sinonime: action,
activity,
auspices,
channel,
efficiency,
force,
influence,
instrument, instrumentality, intercession, intervention,
means,
mechanism, mediation,
medium,
operation, organ,
vehicle,
workAntonime: certain,
definite, indisputable, proven,
sure, undoubted, unquestionable