certain

• Usado para indicar que algo é conhecido como verdadeiro, definido ou específico, mas não nomeado ou descrito em detalhes; também pode expressar convicção ou certeza sobre algo.

Used to indicate that something is known to be true, definite, or specific, but not named or described in detail.

1. Sure or confidentA2formal

   Having no doubt; completely sure about something.

   Certo

   • I am certain that she will arrive on time.
   • He is certain of his decision.
   • Are you certain about the directions?

   Sinônimosassuredconfidentconvinceddoubtlesspositivesureunhesitatingunwavering

   Antônimosdoubtfuluncertainunsurewavering

2. Specific but not namedB1formal

   Used to refer to a particular person, thing, or group without naming them explicitly.

   Certo

   • A certain person called while you were out.
   • There are certain rules you must follow.
   • She has a certain charm that attracts people.

   Sinônimosoneparticularsomespecificunnamedunspecified

3. Inevitable or definiteB1formal

   Something that is bound to happen; unavoidable.

   Inevitável ou certo

   • Change is certain in life.
   • It is certain that the project will be completed by Friday.
   • The outcome of the election is not yet certain.

   Sinônimosassuredbounddefinitedestinedfatedinescapableinevitableinexorablesureunavoidable

   Antônimosdoubtfulquestionableuncertainunlikely