Definify.com
Webster 1913 Edition
Asinine
As′i-nine
,Adj.
Of or belonging to, or having the qualities of, the ass, as stupidity and obstinacy.
“Asinine nature.” B. Jonson.
“Asinine feast.” Milton.
Webster 1828 Edition
Asinine
AS'ININE
, rarely. AS'INARY,Adj.
Belonging to the ass; having the qualities of the ass.