adj. 25B6; adjective
lukewarm coffee : TEPID, slightly warm, warmish, blood-warm, at skin temperature, at room temperature, chambré.
a lukewarm response : INDIFFERENT, cool, half-hearted, apathetic, unenthusiastic, tepid, offhand, lackadaisical, perfunctory, non-committal; informal laid-back, unenthused, couldn't-care-less; rare Laodicean.
hot, cold, enthusiastic.