The definition of asinine is to be silly, stupid or ridiculous.
An example of asinine is a foolish prank played on a friend.
of or like an ass; esp., having qualities regarded as characteristic of asses; stupid, silly, obstinate, etc.
Origin of asinineClassical Latin asininus from asinus, ass
- Utterly stupid or silly: asinine behavior.
- Of, relating to, or resembling an ass.
Origin of asinineLatin asinīnus of an ass from asinus ass of pre-Roman Mediterranean origin akin to Armenian ēs Greek onos and Hieroglyphic Luwian -asna- in tarkasna- ass all probably ultimately from an ancient Near Eastern source akin to Sumerian anše ass and perhaps Akkadian atānu she-ass
(comparative more asinine, superlative most asinine)
From Latin asinīnus (“of a donkey or ass”).