The Collaborative International Dictionary of English v.0.48:
Dwarfish \Dwarf"ish\, a. Like a dwarf; below the common stature or size; very small; petty; as, a dwarfish animal, shrub. -- Dwarf"ish*ly, adv. -- Dwarf"ish*ness, n. [1913 Webster]WordNet (r) 3.0 (2006):
dwarfish adj 1: atypically small; "dwarf tree"; "dwarf star"