Beyond the most literal temperature definition: if "lukewarm" denotes a lack of sensation or excitement, shouldn't its antonym be "exhilarating"? And as for te

Beyond the most literal temperature definition: if "lukewarm" denotes a lack of sensation or excitement, shouldn't its antonym be "exhilarating"? And as for temperature, where it means "no discernable temperature", it has two "antonyms": freezing and scalding.