· onerous - burdensome, troublesome
over cook
old
Orange Pumpkins
Outstanding, optimistic, outgoing and observant are positive adjectives.
· open to everyone
Nouns are not describing words, adjectives are the words that describe noun; people is a noun. Some adjectives starting with O that describe people are:objectiveobliviousobsessedobtuseobviousoldopenopportunisticoriginalorneryostentatiousowlishSome nouns for people that start with O are:oboistoceanographerofficerOlympianopera singeropportunistophthalmologistorganistornithologistorthopedistoutsideroyster farmer
Optimistic, reliable, vigilant and xenophobic start with those letters.
Several adjectives describe oxygen, including gaseous, necessary and colorless. Not many of the adjectives begin with O. One adjective is organic.
I think you are asking are there Chinese characters whose Pinyin symbols start with the letter 'o', there is only a few, and all of them are exclamations, such as 哦, 噢 and 喔. So, there isn't any adjectives among these characters.
Omani, Onondagan, Oklahoman, Occidental, Ojibwe, Ontarian, and Oquagan are proper adjectives that start with the letter O.
Complimentary adjectives that start with the letter a:ableaccessibleadorableagreeableamazingangelicappreciativeartisticastuteathleticattractiveawesome
Some adjectives that start with the letters BLA are:blackblamelessblanchedblandblaringblatant