heavy(redirected from heavy-duty)
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heavy(Burdened), adjective benumbing, careworn, clumsy, dejected, depressed with sorrow, dull, dulled, gloomy, languid, leaden, serious, sluggish, somber, stolid, tempestuous, tiresome, torpid, violent, weary
Associated concepts: heavy burden to fulfill in order to prove a case
heavy(Important), adjective commanding, eventful, immense, noteworthy, overwhelming, prominent, solemn, vast
heavy(Onerous), adjective afflictive, burdensome, consequential, critical, cumbersome, difficult, excessive, grave, grievous, hard, imposing, intense, intolerable, notable, oppressive, striking, severe, substantial, trying, unbearable, unpleasant, unwieldy, wearying
heavy(Ponderous), adjective careful, deliberate, profound, serious, weighty
See also: grave, intense, onerous, oppressive, pedestrian, ponderous, profound, solemn, torpid