Cool
Cool adjective - Having or showing a lack of friendliness or interest in others.
Lackluster and cool are semantically related. In some cases you can use "Lackluster" instead an adjective "Cool".
Lackluster
Lackluster adjective - Lacking brilliance or vitality.
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Synonyms for Lackluster
Cool and lackluster are semantically related. Sometimes you can use "Cool" instead an adjective "Lackluster".
Mutual synonyms
Both words in one sentence
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Judging from the lackluster soundtrack and the fact that it's even more obscure than SNK's Cool Cool Toon and Tecmo's Unison...it didn't quite work.
Source: Video Game / Bust a Groove
Cite this Source
Lackluster and Cool. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/cool/lackluster
Cool & Lackluster. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/cool/lackluster>.
Lackluster or Cool. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/cool/lackluster.
Google Ngram Viewer shows how "cool" and "lackluster" have occurred on timeline