A synonym for "very fast" is quick.
Collective nouns are words to group a like nouns. Collective nouns are not used for the actions of a noun, such a air. Perhaps you were thinking of a synonym (a word that means the same thing) for the term 'air being fast'; a synonym might be 'wind'.
1. Quick learner. 2. Wiki learner 3. Rapid learner.
A synonym is a word that shares the same meaning as a different word. Example: Planes are big; Planes are large.
I don't think it has exact synonym in English. But one can use 'choke'. For ex.: Drinking fast made him choke.
A synonym for "very fast" is quick.
Slow and fast are antonyms; a synonym is a word with a similar meaning.
fast
fast
Agile is a synonym of fast. Athletic is a synonym of fast.
fast; quick
Synonyms.
fast, starvation, dietary, regime
fast, quick, speedy, rapid, ...
well a synonym would be a restaurant and a antonym would be a fast food restaurant
fast, quickly, briskly, hastily, promptly
It is to go fast an he antonym is to go slow