Same word as bigd:

abundant, big, big-deal, bulky, consequential, considerable, durable, extraordinary, firm, generous, goodly, heavy, heavyweight, hefty, key, large, major-league, massive, material, meaningful, momentous, plentiful, principal, serious, significant, sizable, solid, sound, stable, steady, stout, strong, sturdy, superabundant, tidy, valuable, vast, weighty, well-built, worthwhile