| Atony (n.) Want of tone; weakness of the system, or of any organ, especially of such as are contractile. Thesaurus Entries adynamia, anemia, blah feeling, bloodlessness, cachexia, cachexy, cowardice, debilitation, debility, dullness, etiolation, faintness, fatigue, feebleness, flabbiness, flaccidity, impotence, languishment, languor, lassitude, listlessness, prostration, sluggishness, softness, strengthlessness, weakliness, weakness, weariness |