Permanent
Permanent adjective - Lasting forever.
Seasonal
Seasonal adjective - Occurring at or dependent on a particular season.
Both words in one sentence
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SuperS' seasonal upgrade was to make her Super form her permanent form, giving Sailor Chibi-Moon a similar Super powerup.
Source: Super Mode -
Evenkia and Western Yakutia, for example, have no permanent roads, only zimnik (seasonal roads that become available when mud freezes in winter).
Source: The Lost Woods
Cite this Source
Seasonal and Permanent. (2016). Retrieved 2026, July 27, from https://thesaurus.plus/related/permanent/seasonal
Permanent & Seasonal. N.p., 2016. Web. 27 Jul. 2026. <https://thesaurus.plus/related/permanent/seasonal>.
Seasonal or Permanent. 2016. Accessed July 27, 2026. https://thesaurus.plus/related/permanent/seasonal.
Google Ngram Viewer shows how "permanent" and "seasonal" have occurred on timeline