Antonyms of adj asthenic

2 senses of asthenic

Sense 1
adynamic, asthenic, debilitated, enervated -- (lacking strength or vigor)

INDIRECT (VIA weak) -> strong -- (having strength or power greater than average or expected; "a strong radio signal"; "strong medicine"; "a strong man")

Sense 2
asthenic -- (having a slender physique)

INDIRECT (VIA mesomorphic, ectomorphic) -> endomorphic, pyknic -- (having a squat and fleshy build; "a pyknic practical joke")
INDIRECT (VIA ectomorphic, endomorphic) -> mesomorphic, muscular -- (having a robust muscular body-build characterized by predominance of structures (bone and muscle and connective tissue) developed from the embryonic mesodermal layer)

Similarity of adj asthenic

2 senses of asthenic

Sense 1
adynamic, asthenic, debilitated, enervated -- (lacking strength or vigor)
       => weak (vs. strong) -- (wanting in physical strength; "a weak pillar")

Sense 2
asthenic -- (having a slender physique)
       => ectomorphic (vs. endomorphic) (vs. mesomorphic) -- (having a build with little fat or muscle but with long limbs)