Answer: cool

AnswerCrossword Clue
COOL"Rad!"
COOL"Groovy"
COOLHard to flap
COOLNeato-keen
COOLStandoffish
COOLUnaffected by emotion
COOLLoftily unengaged
COOLCollected
COOLAloof
COOLUnwelcoming
COOLLike the proverbial cucumber
COOLGood under pressure
COOLNot exactly friendly
COOLSocially adept, in slang
COOLHardly amicable
COOLNot nerdy
COOL"Works for me!"
COOLUnder control
COOLCalm under pressure
COOLChilly
coolto make or become cool
COOLStand-offish
COOL"Neato!"
COOLFar out
COOLNot so hot
COOLWith it
COOLAir-condition
COOLEven-tempered
COOLLukewarm
COOLLike some cats?
COOLIndifferent
COOL"Great!"
COOLUnruffled
COOLNot easily fazed
COOLNot flapped
COOLRad, phat, or awesome
COOL"Excellent!"
COOL"Awesome!"
COOL"Groovy!"
COOLHardly jittery