gainsay - definition and synonyms

verb [transitive] formal 

Your browser doesn’t support HTML5 audio

/ˌɡeɪnˈseɪ/
present tense
I/you/we/theygainsay
he/she/itgainsays
present participlegainsaying
past tensegainsaid
past participlegainsaid
  1. to say that someone is wrong or that something is not true

    You may not have liked her, but no one could gainsay her determination.