- brash, cheeky, nervy - offensively bold; "a brash newcomer disputed the age-old rules for admission to the club"; "a nervy thing to say"
Antonym: backward (indirect, via forward)
- brash, daredevil, temerarious - presumptuously daring; "a daredevil test pilot having the right stuff"
Antonym: timid (indirect, via bold)