heavy-duty

adjective

heavy-du·​ty ˈhe-vē-ˈdü-tē 

-ˈdyü-

1

: able or designed to withstand unusual strain

heavy-duty trucks

2

: intensive

heavy-duty bargaining

3

: important, prominent

heavy-duty lawyers

Synonyms of heavy-duty

• intensive
• intense
• heavy
• fierce
• deep
• ferocious

Examples of heavy-duty in a Sentence

some heavy-duty lobbying on the part of the president was necessary in order to get the bill passed

a group of heavy-duty politicians and other notables attended the gala

Recent Examples on the Web

Designed for ranch work and rugged driving, the Terra pickup features green paint, 37-inch tires on 18-inch wheels, heavy-duty side steps, a front bull bar, a roof basket with lights, and expanded cargo-bed storage. — Chase Jordan october 3, Charlotte Observer, 3 Oct. 2026

That figure excludes its largest heavy-duty trucks, which are classified differently. — Michael Wayland, CNBC, 2 Oct. 2026

Wrangler said Dyneema is 15-times tougher than steel yet light enough to float on water, giving riders durability without the weight of traditional heavy-duty gear. — Angela Velasquez, Footwear News, 30 Sep. 2026

Rather than forcing you to adapt to a permanently stitched grid of elastic loops, the M3 utilizes heavy-duty, modular pages. — New Atlas, 29 Sep. 2026

Word History

First Known Use

1914, in the meaning defined at sense 1

Rhymes for heavy-duty

• agouti
• beauty
• booty
• cutie
• duty
• fruity
• putti
• snooty
• sooty
• sruti
• tutti

Kids Definition

heavy-duty

adjective

heavy-du·​ty

ˌhev-ē-ˈd(y)üt-ē

: able or designed to take hard use or great strain

heavy-duty vehicles