Synonyms for Dumpy (same or very similar meaning)
WordNet sense 1 (short and thick; as e.g. having short legs and heavy musculature):
chunky, squat, stumpy, low-set, squattyWordNet sense 2 (low in stature; not tall):
shortWordNet sense 3 (short and plump):
pudgy, roly-poly, tubby, podgyWordNet sense 4 (having much flesh (especially fat)):
fatFrom the ODE community, based on WordNetadd/edit