Below are possible answers for the crossword clue (Of change) very rapid.
8 letter answer(s) to (of change) very rapid
METEORIC
like a meteor in speed or brilliance or transience; "a meteoric rise to fame"
of or pertaining to atmospheric phenomena, especially weather and weather conditions; "meteorological factors"; "meteorological chart"; "meteoric (or meteorological) phenomena"
pertaining to or consisting of meteors or meteoroids; "meteoric shower"; "meteoric impacts"
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