Laodicean, aestival, apathetic, arid, blase, blood-hot, blood-warm, calid, cold, colorless, cool, dim, dull, equatorial, faint, feeble, fervorless, forceless, genial, halfhearted, indifferent, lifeless, luke, lukewarm, marrowless, mild, neuter, neutral, nonchalant, perfunctory, pithless, room-temperature, sapless, spiritless, subtropical, summery, sunny, sunshiny, temperate, thermal, thermic, toasty, tropical, uncaring, unconcerned, unenthusiastic, unfrozen, uninterested, unlively, warm, warm as toast, warmish, weak, zealless