doubtful

• Qui éprouve de l'incertitude ou n'est pas convaincu ; également utilisé pour décrire quelque chose de peu probable ou de suspect.

Feeling uncertain about something or not convinced; also used to describe something unlikely to happen or be true.

1. Uncertain or not sureB1formal

   Feeling uncertain about something or not convinced.

   incertain, qui doute

   • I am doubtful about the success of this plan.
   • She was doubtful whether he would arrive on time.
   • The outcome of the negotiations remains doubtful.

   Synonymesdistrustfuldubiousquestioningsuspiciousuncertainunsure

   Antonymescertainconfidentconvincedpositivesure

2. Unlikely or improbableB1formal

   Not likely to happen or be true.

   peu probable

   • It is doubtful that they will finish the project by Friday.
   • His chances of winning the lottery are doubtful.
   • The weather forecast is doubtful for the weekend.

   Synonymesdubiousimprobablequestionableuncertainunlikely

   Antonymescertainindubitablelikelyprobablesureunquestionable

3. Questionable or suspiciousB2formal

   Not trustworthy or reliable; causing suspicion.

   Suspect, douteux

   • The company's financial records are doubtful.
   • His motives for helping were doubtful.
   • The evidence presented in court was highly doubtful.

   Synonymesdubiousfishyquestionableshadysuspectsuspiciousunreliableuntrustworthy

   Antonymescertaincredibleindubitablereliablesuretrustworthyunquestionable