· useful
· unselfish
· upbeat
· unassuming
· unbiased
Outstanding, optimistic, outgoing and observant are positive adjectives.
· sophisticated · special · successful
There are many adjectives that start with the letter J:jadejadedjaggedjammedjammyjangledjanglyJapanesejarringjarryjasminejasperjauncedjaundicedjauntyjaw-droppingjazzyjealousjeanjeeredjejunejelliedjellyjellylikejeopardizedjerkjerkyjetjeweledJewishjigglyjiltedjinglingjinglyjingoisticjinxedjitterjitteringjitteryjivejobilantjoblessjocosejocosityjocularjocundjoggyjoinedjointjointedjokeyjokingjolliestjollyjotterjovialjowlyjoyfuljoyousjubilantJudaicjudgmentaljudicialjudiciousjuiciestjuicyjumbledjumbojumpingjumpyJungianjunglejunglyjuniorjunkjunkyJurassicjuridicaljurisdictionaljuristicjury-riggedjustjustifiablejustifiedjuttingjuvenilejuxtaposed
Some French adjectives that start with the letter "j" are joyeux (happy), jeune (young), joli (pretty), and juste (fair/just).
yearlong
art
kaleidoscopic
There are no adjectives beginning with the letter z that describe a shy person.
depressing
· kindly
mama and Yahtzee
Look in a dictionary under the letter l to find words classed as adjectives, such as likeable, laughable, and lowable.