All depends on where you think one age ends and another begins. I use 18 to 35 for young adult and 36 to 65 for adult since most people I know in their 60s are not EA's definition of elder. Not even sure anyone under 70 fits that definition. For me, Adulthood is longer than young adulthood.
This thesaurus page is about all possible synonyms, equivalent, same meaning and similar words for the term cheeky. Princeton's WordNet(0.00 / 0 votes)Rate these synonyms: brash, cheeky, nervy(adj) offensively bold. Synonyms: cheeky, brash, jumpy, highly strung, nervy, uptight, high-strung, restive, jittery, edgy, overstrung.
: polite and graceful in a formal way courtly manners. See words that rhyme with courtly Thesaurus: All synonyms and antonyms for courtly Spanish Central: Translation of courtly Nglish: Translation of courtly for Spanish speakers Britannica English: Translation of courtly for Arabic speakers.