Needed
Needed adjective - Impossible to do without.
Mutual synonyms
Both words in one sentence
-
For example, they postulate that if one were to make use of quantum inequalities to obtain negative energy (which is needed to make Alcubierre spacetime), then the thickness of the bubble wall must be extremely small (that of the Planck length).
Source: Faster-Than-Light Travel
Cite this Source
Postulate and Needed. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/needed/postulate
Needed & Postulate. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/needed/postulate>.
Postulate or Needed. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/needed/postulate.
Google Ngram Viewer shows how "needed" and "postulate" have occurred on timeline