For a potential love interest to not have honorable intentions towards you.
"So, how was the date?"
"His intentions were unintentionable."
"That's sucks."
"Oh no. It's a great thing. Trust me."
by M.E. Davis November 5, 2008
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Adjective: description of any expression, statement or definition which, although originally intended in earnest, results adversely in humorous disdain.
"Wendy's attempt to explain how her underwear ended up in the frat house rec room was unintentionally hilarious."
by speedog April 28, 2010
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