Several adjectives describe oxygen, including gaseous, necessary and colorless. Not many of the adjectives begin with O. One adjective is organic.
There are many adjectives that start with the letter J:jadejadedjaggedjammedjammyjangledjanglyJapanesejarringjarryjasminejasperjauncedjaundicedjauntyjaw-droppingjazzyjealousjeanjeeredjejunejelliedjellyjellylikejeopardizedjerkjerkyjetjeweledJewishjigglyjiltedjinglingjinglyjingoisticjinxedjitterjitteringjitteryjivejobilantjoblessjocosejocosityjocularjocundjoggyjoinedjointjointedjokeyjokingjolliestjollyjotterjovialjowlyjoyfuljoyousjubilantJudaicjudgmentaljudicialjudiciousjuiciestjuicyjumbledjumbojumpingjumpyJungianjunglejunglyjuniorjunkjunkyJurassicjuridicaljurisdictionaljuristicjury-riggedjustjustifiablejustifiedjuttingjuvenilejuxtaposed
kaleidoscopic
art
yearlong
There are no adjectives beginning with the letter z that describe a shy person.
Outstanding, optimistic, outgoing and observant are positive adjectives.
· kindly
mama and Yahtzee
depressing
jumbo - unusually large
You can describe school as academic or agonizing. They begin with the letter A.
Meandering