optional
— Adjective
– English
～ possible but not necessary; left to personal choice
opulent
— Adjective
– English
～ ostentatiously rich and superior in quality; "a princely sum"; "gilded dining rooms"; "these architecture magazines are full of the lush interiors of the rich and famous"
all-or-none
— Adjective
– English
～ occurring completely or not occurring at all
all-or-nothing
— Adjective
– English
～ occurring completely or not occurring at all
do-or-die
— Adjective
– English
～ desperately determined; "do-or-die revolutionaries"; "a do-or-die conflict"
life-or-death
— Adjective
– English
～ vitally important; "a life-and-death struggle"
hit-or-miss
— Adjective
– English
～ dependent upon or characterized by chance; "a haphazard plan of action"; "his judgment is rather hit-or-miss"
oracular
— Adjective
– English
～ of or relating to an oracle; "able by oracular means to expose a witch"
oracular
— Adjective
– English
～ resembling an oracle in obscurity of thought; "the oracular sayings of Victorian poets"; "so enigmatic that priests might have to clarify it"; "an enigmatic smile"
oral
— Adjective
– English
～ a stage in psychosexual development when the child's interest is concentrated in the mouth; fixation at this stage is said to result in dependence, selfishness, and aggression
oral
— Adjective
– English
～ of or relating to or affecting or for use in the mouth; "oral hygiene"; "an oral thermometer"; "an oral vaccine"
oral
— Adjective
– English
～ using speech rather than writing; "an oral tradition"; "an oral agreement"
oral
— Adjective
– English
～ of or involving the mouth or mouth region or the surface on which the mouth is located; "the oral cavity"; "the oral mucous membrane"; "the oral surface of a starfish"; "a buccal gland"
orange-hued
— Adjective
– English
～ having the color of ripe oranges
orange-flowered
— Adjective
– English
～ having orange flowers
orange-colored
— Adjective
– English
～ having the color of ripe oranges
orange
— Adjective
– English
～ of the color between red and yellow; similar to the color of a ripe orange
orange-brown
— Adjective
– English
～ of brown tinged with orange
orange-coloured
— Adjective
– English
～ having the color of ripe oranges