CHEEKY
brash, cheeky, nervy
(adjective) offensively bold; “a brash newcomer disputed the age-old rules for admission to the club”; “a nervy thing to say”
Source: WordNet® 3.1
Etymology
Adjective
cheeky (comparative cheekier, superlative cheekiest)
(informal) Impudent; impertinent; impertinently bold, often in a way that is regarded as endearing or amusing.
(informal) (of swimwear, underwear, etc.) tending to reveal the cheeks of the buttocks.
(Australian Aboriginal) Poisonous (of animals such as snakes), dangerous, cunning, violent, potent.
(informal, UK) Indulged in.
Synonyms
• saucy
• insolent
• See cheeky
Source: Wiktionary
Cheek"y,
Definition: a Brazen-faced; impudent; bold. [Slang.]
Source: Webster’s Unabridged Dictionary 1913 Edition