Antonyms of adj hefty

3 senses of hefty

Sense 1
brawny, hefty, muscular, powerful, sinewy -- ((of a person) possessing physical strength and weight; rugged and powerful; "a hefty athlete"; "a muscular boxer"; "powerful arms")

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

Sense 2
hefty -- (of considerable weight and size; "a hefty dictionary")

INDIRECT (VIA heavy) -> light -- (of comparatively little physical weight or density; "a light load"; "magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C")

Sense 3
goodly, goodish, healthy, hefty, respectable, sizable, sizeable, tidy -- (large in amount or extent or degree; "it cost a considerable amount"; "a goodly amount"; "received a hefty bonus"; "a respectable sum"; "a tidy sum of money"; "a sizable fortune")

INDIRECT (VIA considerable) -> inconsiderable -- (too small or unimportant to merit attention; "passed his life in an inconsiderable village"; "their duties were inconsiderable"; "had no inconsiderable influence")

Similarity of adj hefty

3 senses of hefty

Sense 1
brawny, hefty, muscular, powerful, sinewy -- ((of a person) possessing physical strength and weight; rugged and powerful; "a hefty athlete"; "a muscular boxer"; "powerful arms")
       => strong (vs. weak) -- (having strength or power greater than average or expected; "a strong radio signal"; "strong medicine"; "a strong man")

Sense 2
hefty -- (of considerable weight and size; "a hefty dictionary")
       => heavy (vs. light) -- (of comparatively great physical weight or density; "a heavy load"; "lead is a heavy metal"; "heavy mahogany furniture")

Sense 3
goodly, goodish, healthy, hefty, respectable, sizable, sizeable, tidy -- (large in amount or extent or degree; "it cost a considerable amount"; "a goodly amount"; "received a hefty bonus"; "a respectable sum"; "a tidy sum of money"; "a sizable fortune")
       => considerable (vs. inconsiderable) -- (large or relatively large in number or amount or extent or degree; "a considerable quantity"; "the economy was a considerable issue in the campaign"; "went to considerable trouble for us"; "spent a considerable amount of time on the problem")