FREAKISH

bizarre, eccentric, freakish, freaky, flaky, flakey, gonzo, off-the-wall, outlandish, outre

(adjective) conspicuously or grossly unconventional or unusual; “restaurants of bizarre design--one like a hat, another like a rabbit”; “famed for his eccentric spelling”; “a freakish combination of styles”; “his off-the-wall antics”; “the outlandish clothes of teenagers”; “outre and affected stage antics”

freakish

(adjective) characteristic of a freak; “a freakish extra toe”

capricious, freakish

(adjective) changeable; “a capricious summer breeze”; “freakish weather”

Source: WordNet® 3.1

Etymology

Adjective

freakish (comparative more freakish, superlative most freakish)

Resembling a freak.

Strange, unusual, abnormal or bizarre.

Capricious, unpredictable.

Source: Wiktionary

Freak"ish, a.

Definition: Apt to change the mind suddenly; whimsical; capricious. It may be a question whether the wife or the woman was the more freakish of the two. L'Estrange. Freakish when well, and fretful when she's sick. Pope.

– Freak"ish*ly, adv.

– Freak"ish*ness, n.

Source: Webster’s Unabridged Dictionary 1913 Edition