Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

untiring

play
adjective un·tir·ing \-ˈtī-riŋ\

Simple Definition of untiring

  • : working very hard with a lot of energy for a long time : never seeming to get tired

Full Definition of untiring

  1. :  not becoming tired :  indefatigable <an untiring worker>

un·tir·ing·ly adverb

Examples of untiring

  1. <the camel's reputation as an untiring beast of burden>

  2. <the detective's untiring investigation of the crime finally led to several arrests>



1822

First Known Use of untiring

1822


UNTIRING Defined for Kids

untiring

play
adjective un·tir·ing \ˌən-ˈtī-riŋ\

Definition of untiring

  1. :  not becoming tired




Learn More about untiring


Seen and Heard

What made you want to look up untiring? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 6, 2016

an official order, decree, or edict

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

kittly-benders spindrift pince-nez duvet
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ