Lūke'warm, a.
a. [See LUKE, supra.]
Sense 1. Moderately warm; neither cold nor hot; tepid; as, lukewarm water; lukewarm heat.
Sense 2. Not ardent; not zealous; cool; indifferent. “Lukewarm patriots.” Addison. “An obedience so lukewarm and languishing that it merits not the name of passion.” Dryden.