gainsay
US /ˌɡeɪnˈseɪ/
UK /ˌɡeɪnˈseɪ/

1.
negare, contraddire
deny or contradict (a fact or statement)
:
•
The evidence was too strong to gainsay.
La prova era troppo forte per essere negata.
•
No one could gainsay her claim to the inheritance.
Nessuno poteva contraddire la sua pretesa sull'eredità.
2.
contraddire, opporsi a
speak against or oppose (someone)
:
•
It was useless to gainsay him, as he was determined to go.
Era inutile contraddirlo, poiché era determinato ad andare.
•
She was too polite to gainsay her elders.
Era troppo educata per contraddire i suoi anziani.