adj. heft·i·er, heft·i·est 1. Of considerable weight; heavy. 2. Big and strong; stout or muscular. See Synonyms at heavy. 3. Strong and sturdy: a hefty door. 4. Of considerable size or amount; substantial: a hefty serving of mashed potatoes; received a hefty bonus. hefti·ly adv. hefti·ness n. |
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