Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb beef-up

1 sense of beef up

Sense 1
strengthen, beef up, fortify -- (make strong or stronger; "This exercise will strengthen your upper body"; "strengthen the relations between the two countries")
       => change, alter, modify -- (cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue")

Antonyms of adj beefed-up

1 sense of beefed-up

Sense 1
beefed-up -- (made greater or stronger; "beefed-up sales efforts")

INDIRECT (VIA strong) -> weak -- (wanting in physical strength; "a weak pillar")

Similarity of adj beefed-up

1 sense of beefed-up

Sense 1
beefed-up -- (made greater or stronger; "beefed-up sales efforts")
       => strong (vs. weak) -- (having strength or power greater than average or expected; "a strong radio signal"; "strong medicine"; "a strong man")