time-consuming

adjective

time-con·​sum·​ing ˈtīm-kən-ˈsü-miŋ 

1

: using or taking up a great deal of time

time-consuming chores

2

: wasteful of time

time-consuming tactics

Examples of time-consuming in a Sentence

Recent Examples on the Web

Given today’s risks, frontier labs need to run like nuclear power plants or busy airports, with layers of redundancy and careful, time-consuming planning, so that the occasional and inevitable human error does not open a door to disaster. — Terrence O'Brien, The Verge, 3 Oct. 2026

But tracing where guns came from and whether they have been used in other crimes is time-consuming. — Nimi Princewill, CNN Money, 2 Oct. 2026

Many newer business owners still use spreadsheets or pen and paper to record transactions, even though manual bookkeeping can be time-consuming and lead to more errors. — Carson Brunson, CNBC, 2 Oct. 2026

Different views on the topic Some users and reviewers say Muse can take on practical, time-consuming tasks. — Business Columnist, Los Angeles Times, 2 Oct. 2026

Word History

First Known Use

1600, in the meaning defined at sense 1

Rhymes for time-consuming

• assuming
• consuming
• costuming
• presuming
• resuming
• subsuming
• blooming
• booming
• fuming
• grooming
• looming
• rooming