Answer: unawed

AnswerCrossword Clue
UNAWED

Like one who's seen it all

UNAWED

Not impressed

UNAWED

Apathetic

UNAWED
Not the least bit impressed
UNAWED
Not impressed.
UNAWEDNot frightened.
UNAWEDFearless
UNAWEDDauntless
UNAWEDLike someone who couldn't care less