1. Something utterly ridiculous or lacking sense.
2. Something relating to or resembling an ass.
1. The act of being an asshole.
2. The act of being a retard.
3. The act of being stupid.
4. The act of being ignoramus.
1. That's an asinine plan.
2. That piece of "art" is asinine.
That guy's asinine, in all meanings of the word.
2. I just wanted to slap the crap out of that asinine person!
3. If she was any more annoyingly asinine she would have a tail on her backside.