1) Apathetic 2) Half-hearted 3) Indifferent 4) Lackadaisical 5) Moderate 6) Moderately warm 7) Neither hot nor cold 8) Tepid 9) Unenthusiastic 10) Warm 1) Blah 2) Halfhearted 3) Hypothermal 4) Temperate 5) Unenthusiastic 6) Warm 
[Porridge] Lukewarm was a fictional character in the popular BBC sitcom Porridge. He was played by Christopher Biggins. Lukewarm is a rotund young man with a calm and personable demeanour, who originates from Middlesbrough. The circumstances that brought him to be in prison are unknown although in one episode he successfully relieved Mr. Ba...
• (a.) Moderately warm; neither cold nor hot; tepid; not ardent; not zealous; cool; indifferent.
Neither cool nor warm; approximately body temperature.
Luke'warm` adjective [ See Luke .] Moderately warm; neither cold nor hot; tepid; not ardent; not zealous; cool; indifferent. ' Lukewarm blood.' Spenser. ' Lukewarm patriots.' Addison. « An obedience so lukewarm and languishing that it merits not the nam...
A temperature that feels neither hot nor cold when tested on the inside wrist 
[adj] - moderately warm
Mildly warm liquid (milk or water), very slightly warmer than the body temperature. Usually required to activate yeast before baking.
a temperature that is neither hot nor cold. Usually around 100-105°F.
tepid adjective moderately warm; `he hates lukewarm coffee`; `tepid bath water`
Neither cool nor warm; approximately body temperature.
moderately warm; tepid. · having or showing little ardor, zeal, or enthusiasm; indifferent: lukewarm applause.
A temperature of about 105°F, which feels neither hot nor cold.