misbelieving

verb

1. (form-of, gerund, participle, present)present participle and gerund of misbelieve

noun

1. The refusal to believe something; disbelief, or an instance of this.

   “I know a man of authority, brought up in letters, who confessed unto me, that he was reclaimed from out the errours of mis-beleeving by the Arguments of Sebond.”