adjective.
Failing to exerciseintelligence or judgment; ridiculously below average rationality.
adjective.
Of, pertaining to, or characteristic of donkeys.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
devoid of intelligence
Word Usage
"While I happen to consider the term asinine as defined by the Bush Administration, putting it in quotes is approximately equivalent to preceding it with a deprecating but information-free phrase such as so-called."