: able or designed to withstand unusual strain <heavy–duty trucks>
First Known Use of HEAVY-DUTY
Related to HEAVY-DUTY
- acute, almighty, blistering, deep, dreadful, excruciating, explosive, exquisite, fearful, fearsome, ferocious, fierce, frightful, furious, ghastly, hard, heavy, heavy-duty, hellacious, intensive, keen, profound, terrible, vehement, vicious, violent
- light, moderate, soft
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