Gāin-sāy' or Gāin'sāy, v. t.

v. t. [imp. & p. p. GAIN-SAID; p. pr. & vb. n. GAINSAYING.] [A-S. gein, against, and say.] To contradict; to oppose in words; to deny or declare not to be true; to controvert; to dispute.

I will give you a mouth and wisdom which all your adversaries shall not be able to gainsay nor resist. Luke xxi. 15.