Synonyms to one horse

cramped, dinky, exiguous, half-pint, jerkwater, knee-high, limited, little, measly, niggling, petite, pettifogging, petty, picayune, picayunish, piddling, piffling, pindling, pint-sized, poky, punk, puny, short, slight, small, small-beer, small-time, smallish, tinhorn, two-bit, two-by-four