Opp Volleyball Position - Sport

The mainstream dictionary entries seem to be either for "opp" meaning "opportunity" (as in "business opp", "job opp"), or as an abbreviation for terms such as "opposite" or "opus". So I think the hip-hop slang is probably a separate coinage. Distribution of slang term “opp” - English Language & Usage Stack ...

Possible Duplicate: How do I say “Our meeting is preponed”? A friend of mine asked me this question, and it caught my curiosity. Is there an explicit opposite of the word postpone?... verbs - What is the opposite of postpone?

opp volleyball position, - English Language & Usage ... Opp. to rare. and 'rare' in this sense: a. Originally: (of an organ or tissue, soil, or other substance) having the constituent material or particles loose or not closely packed together; not dense or compact; attenuated.

opp volleyball position, In later use chiefly: (of air or a gas) having low density, thin (though cf. rare gas n. at Special uses 2). Neither shallow nor gentle are the opposite of steep, but rather words we make do with because there is no actual word for what we mean; when asked the opposite of gentle or shallow we wouldn't naturally say steep, but harsh or deep respectively. Is there a general name for the situation where words 'should' exist but don't, and we have to make do with others? single word requests - What is the opposite of "steep"?

- English ... Obviously something can be sub-optimal or poor, minimal, bad or terrible... But is there a word that means the exact opposite, the antonym, of optimal?