What is the Latin word for but, on the contrary?

The usual Latin words for “but, on the contrary” are immō, libēns. The right choice depends on the sense; see the distinctions below.

English → Latin

“but, on the contrary” in Latin

immōon the contrary, nay (rather), no indeed; actually, what is more, even (often intensified with edepol, hercle, ecastor, libēnsready, willing, eager; with pleasure, with good will; glad, cheerful, merry

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

but, on the contrary

at contra, at enim vero. BUT RATHER, immo, immo vero, immo enimvero.

To be praised with a but, cum exceptione laudari. Without an if or but, sine ulla mora, haud cunctanter, libentissime.

Quick answer

What is the Latin word for but, on the contrary?: The usual Latin words for “but, on the contrary” are immō, libēns. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.