disbelieve

From Wiktionary

Word parts[change]

dis- + believe

Pronunciation[change]

Verb[change]

Plain form
disbelieve

Third-person singular
disbelieves

Past tense
disbelieved

Past participle
disbelieved

Present participle
disbelieving

  1. If someone is said to disbelieve something, he is said to not believe it to be true.