Fast
Fast adjective - Moving, proceeding, or acting with great speed.
Imperative and fast are semantically related. In some cases you can use "Imperative" instead an adjective "Fast".
Imperative
Imperative adjective - Forcing one's compliance or participation by or as if by law.
Fast and imperative are semantically related. Sometimes you can use "Fast" instead an adjective "Imperative".
Nearby Words: imperious, imperatively
Both words in one sentence
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Those deal damage, but TAKE NONE, it is imperative to find the real Jandice (her name is distinct from the images, so she can be found easily) and down her fast.
Source: Doppelgänger Attack -
Zerg Rush: The game is very aggressive, fast paced, and thus heavily geared toward this type of play; due to there only being a finite number of build spots to own, rushing out as fast as you can to claim them is imperative.
Cite this Source
Imperative and Fast. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/fast/imperative
Fast & Imperative. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/fast/imperative>.
Imperative or Fast. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/fast/imperative.
Google Ngram Viewer shows how "fast" and "imperative" have occurred on timeline