| Term | Definition |
|
opaque |
dark; not transparent; |
|
opportunist |
taking immediate advantage, often unethically, of any circumstance of possible benefit |
|
optimist |
a person disposed to take a favorable view of things |
|
optional |
left to one's choice; not required |
|
opulence |
extreme wealth; luxuriousness; abundance |
|
ornate |
elaborately decorated |
|
ostentatious |
showy; pretentious; trying to attract attention |
|
pacifist |
someone opposed to violence as a means of settling disputes |
|
painstaking |
characterized by extreme care and great effort |
|
palliate |
provide physical relief, as from pain |