gainsay
verb
[ ɡeɪnˈseɪ ]
• deny or contradict (a fact or statement).
• "the impact of the railways cannot be gainsaid"
Similar:
deny,
dispute,
disagree with,
argue with,
dissent from,
contradict,
repudiate,
declare untrue,
challenge,
oppose,
contest,
counter,
fly in the face of,
disprove,
debunk,
explode,
discredit,
refute,
rebut,
brush aside,
shoot full of holes,
shoot down (in flames),
disaffirm,
controvert,
confute,
Origin:
Middle English: from obsolete gain- ‘against’ + say.