LATIN DICTIONARYLexicon Latīnum
English → Latin

“insincere” in Latin

The English word insincere itself goes back to Latin sincērus, through insincerus.

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

insincere
blandus (soft-spoken, etc; e.g., friend, amicus; opposed to verus amicus, Cic.): fucatus: fucosus (varnished over, as it were, to look fairer than it really is; the former of things, the latter of persons or things; vicinia non fucosa; fucosae amicitiae, Cic.). (The words are found in this connection and order.) fucatus et simulatus (opposed to sincerus et verus, Cic.): falsus (false; not open-hearted): infidus (that cannot be trusted; e.g., amicus): fallax: fraudulentus: dolosus: subdolus [SYN. in DECEITFUL]: tectus: occultus (dark, reserved; entertaining some concealed purpose, etc.). (The words are found in this connection and order.) occultus et tectus (close, reserved); astutus et occultus (crafty and designing; Cic.). Insincere declarations or professions, verba sine fide jactata. How insincere you are! ut falsus es animi! (Terentianus).

Quick answer

What is the Latin word for insincere?
The usual Latin words for “insincere” are blandus, fūcō, fūcōsus; also fallō, īnfīdus, fallāx. 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.