Low
Low adjective - Being near the equator.
Optional
Optional adjective - Subject to one's freedom of choice.
Low and optional are semantically related. Sometimes you can use "Low" instead an adjective "Optional".
Nearby Words: option, optionally
Both words in one sentence
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Optional Stealth: A low-level quest is called "Stealthy Repossession", and involves stealing a special gemstone back from kobolds without killing more than a few kobold prophets.
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Optional Stealth: In the mission "Dead End", you're supposed to stay low to avoid radar contact, but you don't fail the mission immediately if you fly too high.
Source: Video Game / Ace Combat 2 -
Thankfully in the optional variety of this trope, due to the low catch rate of some familiars.
Source: Video Game / Ni no Kuni
Cite this Source
Optional and Low. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/low/optional
Low & Optional. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/low/optional>.
Optional or Low. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/low/optional.
Google Ngram Viewer shows how "low" and "optional" have occurred on timeline