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

Headquartered in Pohang, the South Korean corporation aims to use automation and robotics to curb industrial mishaps and improve safety in heavy-duty sites. —Atharva Gosavi, Interesting Engineering, 23 Dec. 2025

Place heavy-duty plastic wrap directly on warm custard (to prevent a film from forming), and cool 30 minutes. —Kimberly Holland, Southern Living, 23 Dec. 2025

While single-stage snowblowers are optimal for light dustings, two-stage blowers are ideal for heavy-duty conditions and larger spaces. —Stephanie Osmanski, Better Homes & Gardens, 22 Dec. 2025

Police said the man was struck, knocked to the ground and run over by a Kalar Hustler trailer tug — a heavy-duty device used for towing. —Caroline Zimmerman, Kansas City Star, 22 Dec. 2025

Word History

First Known Use

1914, in the meaning defined at sense 1

Rhymes for heavy-duty

• 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