Needed
Needed adjective - Impossible to do without.
Usage example: pack only what will be needed
Persistent and needed are semantically related. In some cases you can use "Persistent" instead an adjective "Needed".
Persistent
Persistent adjective - Continuing despite difficulties, opposition, or discouragement.
Needed and persistent are semantically related. Sometimes you can use "Needed" instead an adjective "Persistent".
Mutual synonyms
Both words in one sentence
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Persistent engine problems and questions about whether a heavy fighter was actually needed resulted in its cancellation with only one prototype ever built.
Source: Real Life / Cool Plane -
Persistent rains aren't helping; a break in the storm clouds is needed desperately.
Source: Rising Water, Rising Tension - Super-Persistent Predator: When Gobber tells Hiccup and his friends of his past encounters with the Boneknapper Dragon, it's revealed that it has chased him ever since he unwittingly took a piece of the bone from its armor which it needed to roar, pursuing him on desert island, jungle, volcano, etc.
Cite this Source
Persistent and Needed. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/needed/persistent
Needed & Persistent. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/needed/persistent>.
Persistent or Needed. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/needed/persistent.
Google Ngram Viewer shows how "needed" and "persistent" have occurred on timeline