Infrared
Infrared adjective - Having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end.
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Synonyms for Infrared
Ultraviolet and infrared are semantically related. In some cases you can use "Ultraviolet" instead an adjective "Infrared".
Ultraviolet
Ultraviolet adjective - Having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end.
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Synonyms for Ultraviolet
Infrared and ultraviolet are semantically related. You can use "Infrared" instead an adjective "Ultraviolet".
Mutual synonyms
Related pairs
- imperceptible and infrared
- imperceptible and ultraviolet
- concealed and infrared
- concealed and ultraviolet
- hidden and infrared
- hidden and ultraviolet
- occult and infrared
- occult and ultraviolet
- out of sight and infrared
- out of sight and ultraviolet
- x-ray and infrared
- x-ray and ultraviolet
- covert and infrared
- covert and ultraviolet
Both words in one sentence
- Earlier editions used vision that extended into the infrared or ultraviolet spectra instead.
Source: Bizarre Alien Senses - For example, any sort of infrared or ultraviolet vision changes things to a form we can comprehend.
Source: Fictional Colour -
Alternatively, some creators opt to branch out into the non-visible parts of the electromagnetic spectrum, such as infrared and ultraviolet.
Source: Rainbow Motif
Cite this Source
Ultraviolet and Infrared. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/infrared/ultraviolet
Infrared & Ultraviolet. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/infrared/ultraviolet>.
Ultraviolet or Infrared. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/infrared/ultraviolet.
Google Ngram Viewer shows how "infrared" and "ultraviolet" have occurred on timeline