Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary
1

unless

play
conjunction un·less \ən-ˈles, ˈən-ˌ\

Simple Definition of unless

  • —used to say what will happen, be done, or be true if something else does not happen, is not done, or is not true

Source: Merriam-Webster's Learner's Dictionary

Full Definition of unless

  1. 1 :  except on the condition that :  under any other circumstance than

  2. 2 :  without the accompanying circumstance or condition that :  but that :  but


2

unless

preposition un·less

Definition of unless

  1. :  except possibly :  except



Circa 1532

First Known Use of unless

circa 1532



UNLESS Defined for Kids

unless

play
conjunction un·less \ən-ˈles\

Definition of unless for Students

  1. :  except on the condition that <You can't have dessert unless you finish your dinner.>





Seen and Heard

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

WORD OF THE DAY

to defraud especially of money

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

angry maudlin oily prompt
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ