Main Entry: gain·say

Pronunciation: \ˌgān-ˈsā\

Function: transitive verb

Inflected Form(s): gain·said \-ˈsād, -ˈsed\; gain·say·ing \-ˈsā-iŋ\; gain·says \-ˈsāz, -ˈsez\

Etymology: Middle English gainsayen, from gain- against (from Old English gēan-) + sayen to say — more at again

Date: 14th century

1 : to declare to be untrue or invalid
2 : contradict, oppose

synonyms see deny

— gain·say·er noun