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

These dishwasher-safe option offers heavy-duty protection from both high temperatures and thermal shock, for consistently soft, spreadable butter. — Clara Hillis, Architectural Digest, 18 Aug. 2026

Mold Stain Remover Gel Cleaner is a heavy-duty solution designed to remove mold stains from various surfaces, including front loader washing machine seals, bathroom grout, showers, and caulk. — ABC News, 17 Aug. 2026

How to choose a concealer for dark circles The heavy-duty concealer that covers your angriest breakouts might not be the best choice for the delicate skin under your eyes. — Alanna Martine Kilkeary, Glamour, 15 Aug. 2026

Likewise, homes in regions with heavy pine trees, winter snow or heavy tropical rainfall may require more heavy-duty installations that can withstand intense weather. — Nick Perry, USA Today, 11 Aug. 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