Antonyms of adj sizable

2 senses of sizable

Sense 1
ample, sizable, sizeable -- (fairly large; "a sizable fortune"; "an ample waistline"; "of ample proportions")

INDIRECT (VIA large, big) -> small, little -- (limited or below average in number or quantity or magnitude or extent; "a little dining room"; "a little house"; "a small car"; "a little (or small) group")
INDIRECT (VIA large, big) -> small, little -- (limited or below average in number or quantity or magnitude or extent; "a little dining room"; "a little house"; "a small car"; "a little (or small) group")

Sense 2
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 sizable

2 senses of sizable

Sense 1
ample, sizable, sizeable -- (fairly large; "a sizable fortune"; "an ample waistline"; "of ample proportions")
       => large (vs. small), big (vs. little) -- (above average in size or number or quantity or magnitude or extent; "a large city"; "set out for the big city"; "a large sum"; "a big (or large) barn"; "a large family"; "big businesses"; "a big expenditure"; "a large number of newspapers"; "a big group of scientists"; "large areas of the world")

Sense 2
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")