IPA: /tɛˈpɪdəti/
KK: /tɛˈpɪdəti/
The quality or state of being moderately warm, neither hot nor cold.
The tepidity of the water made it comfortable for swimming.
Tepidity → It is formed from "tepidus" (Latin, meaning lukewarm) and the suffix "-ity" (meaning the state or condition of). The word "tepidity" refers to the state of being lukewarm or moderately warm.
Think of 'lukewarm' ('tepidus') to remember that 'tepidity' means the state of being moderately warm.