Uncharacteristic

Common synonyms include: antitypic, atypical organism, character, foreign, more unrepresentative, non emblematic work.

adj

adj ·6 syllables ·Rare ·Advanced level

Definitions

Adjective

1
Not characteristic.
2
Out of character; behavior that is unusual for a given person or thing.
"The decision to preannounce an unproven technology was an uncharacteristic one for Intel, said G. Dan Hutcheson, president of VLSI Research Inc., and a longtime observer of the company."

Adjective

"That's uncharacteristic of Tom."

From un- + characteristic.