extremely high frequency (noun) radio frequency: wave between audio and infrared
Sinonime: apathetic, cool, impassive, indifferent, irresolute, lackluster, listless, lukewarm, neutral, passive, perfunctory, spiritless, tame, tepid, unenthusiastic, uninterested
Antonime: desirous, enthusiastic,
interested,
warm, whole-hearted