swear blind

English

Verb

swear blind (third-person singular simple present swears blind, present participle swearing blind, simple past swore blind, past participle sworn blind)

1. (colloquial) To insist strongly (that something is true).

   He had a reputation as a womanizer, but he swore blind that he had met the right girl in me and said he wanted to settle down.

Translations

verb

• Welsh: tyngu i'r cyrs ac i'r coed (literally “to swear to the swamp and to the trees”)