Antonyms of adj tepid

2 senses of tepid

Sense 1
lukewarm, tepid -- (moderately warm; "he hates lukewarm coffee"; "tepid bath water")

INDIRECT (VIA warm) -> cool -- (neither warm nor very cold; giving relief from heat; "a cool autumn day"; "a cool room"; "cool summer dresses"; "cool drinks"; "a cool breeze")

Sense 2
halfhearted, half-hearted, tepid, lukewarm -- (feeling or showing little interest or enthusiasm; "a halfhearted effort"; "gave only lukewarm support to the candidate")

INDIRECT (VIA unenthusiastic) -> enthusiastic -- (having or showing great excitement and interest; "enthusiastic crowds filled the streets"; "an enthusiastic response"; "was enthusiastic about taking ballet lessons")

Similarity of adj tepid

2 senses of tepid

Sense 1
lukewarm, tepid -- (moderately warm; "he hates lukewarm coffee"; "tepid bath water")
       => warm (vs. cool) -- (having or producing a comfortable and agreeable degree of heat or imparting or maintaining heat; "a warm body"; "a warm room"; "a warm climate"; "a warm coat")

Sense 2
halfhearted, half-hearted, tepid, lukewarm -- (feeling or showing little interest or enthusiasm; "a halfhearted effort"; "gave only lukewarm support to the candidate")
       => unenthusiastic (vs. enthusiastic) -- (not enthusiastic; lacking excitement or ardor; "an unenthusiastic performance by the orchestra"; "unenthusiastic applause")