Is fickle a word in the Scrabble Dictionary

Yes, fickle is playable

...and is worth 17 points.

Found in the following dictionaries

Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)

"Fickle" Definition

adjective

Characterized by erratic changeableness or instability, especially with regard to affections or attachments; capricious.
Marked by lack of steadfastness, constancy, or stability given to changeableness.