n. 25B6; adjective
a small flat : LITTLE, compact, bijou, tiny, miniature, mini; minute, microscopic, minuscule; toy, baby; poky, cramped, boxy; Scottish wee; informal tiddly, teeny, teensy, itsy-bitsy, itty-bitty, pocket-sized, half-pint, dinky, ickle; Brit. informal titchy; N. Amer. informal little-bitty.
a very small man : SHORT, little, petite, diminutive, elfin, tiny; puny, undersized, stunted, dwarfish, midget, pygmy, Lilliputian; Scottish wee; informal teeny, pint-sized.
a few small changes : SLIGHT, minor, unimportant, trifling, trivial, insignificant, inconsequential, negligible, nugatory, infinitesimal; informal minuscule, piffling, piddling.
small helpings : INADEQUATE, meagre, insufficient, ungenerous; informal measly, stingy, mingy, pathetic.
they made him feel small : FOOLISH, stupid, insignificant, unimportant; embarrassed, humiliated, uncomfortable, mortified, ashamed; crushed.
a small farmer : SMALL-SCALE, small-time; modest, unpretentious, humble.
micro-, mini-, nano-.
big, tall, major, ample, substantial.