Small in size
diminutive, dwarfish, small, tiny, shrunk, atomic, wee, undersized, not big, not large, stunted, limited, cramped, wizened, scraggy, imperceptible, light, slight, microscopic, short, Lilliputian, runty, embryonic, elfin, invisible, shriveled, amoebic, microzoic, animalcular, pugged, vestigial, stubby, truncated, snub, molecular, microbic, toy, miniature, scrubby, cramped, puny, pygmy, dwarfed, inappreciable, bantam, half-pint*, pocket-sized*, pint-sized*; see also minute 1.
Antonyms large*, big, huge.