New Word A Day

Quixotic

Pronounced:
< Quick-zot-tic >

Persistently Impractical.  Unpredictable.

My use: 
It is quixotic of you to keep suggesting that Friday should be Hawaiian T-shirt day.  The company will never agree.

Literary use:
By George Eliot
As a consequence, her not infrequent excursions into the domain of satire are usually luckless and Quixotic.
 

Memory trick:
Quixotic

Quix (sounds like ) = quick
otic (reminds of ) =  neurotic or unpredictable
Quick at being neurotic

Listen: Quixotic