| Febrile (a.) Pertaining to fever; intensely emotional or active; as, febrile symptoms; febrile action. Thesaurus Entries ablaze, afire, ardent, at fever pitch, boiling, boiling over, breathless, burning, burning with excitement, cordial, delirious, drunk, enthusiastic, excited, exuberant, fanatical, fervent, fervid, fevered, feverish, feverous, fiery, flaming, flushed, frantic, frenetic, frenzied, furious, glowing, hearty, heated, hectic, het up, hot, hyperpyretic, hyperthermic, hysteric, impassioned, in a fever, in rut, infatuated, inflamed, insane, intense, intoxicated, keen, lively, on fire, overanxious, overdesirous, overeager, overenthusiastic, overzealous, passionate, perfervid, pyretic, red-hot, seething, sexually excited, steaming, steamy, ultrazealous, unrestrained, vigorous, warm, wild, zealous | ![]() |