Imperative
Imperative adjective - Impossible to do without.
Usage example: proper equipment is imperative for the success of this chemical experiment
Substantial and imperative are semantically related. In some cases you can use "Substantial" instead an adjective "Imperative".
Nearby Words: imperious, imperatively
Substantial
Substantial adjective - Having great meaning or lasting effect.
Imperative and substantial are semantically related. Sometimes you can use "Imperative" instead an adjective "Substantial".
Cite this Source
Substantial and Imperative. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/imperative/substantial
Imperative & Substantial. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/imperative/substantial>.
Substantial or Imperative. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/imperative/substantial.
Google Ngram Viewer shows how "imperative" and "substantial" have occurred on timeline