/ Dictionary / Index A asthenic: Meaning and Definition of Find definitions for: as•then•ic Pronunciation: (as-then'ik), [key] — adj. of, pertaining to, or characterized by asthenia; weak. (of a physical type) having a slight build or slender body structure. Cf. athletic (def. 5),(def. 1). —n. a person of the asthenic type. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: asthenic (Thesaurus) asthenia asthenopia Related Content Daily Word Quiz: coincidence Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language