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

unfasten

play
verb un·fas·ten \-ˈfa-sən\

Simple Definition of unfasten

  • : to make (something) loose

Full Definition of unfasten

  1. transitive verb
  2. :  to make loose: as a :  unpin, unbuckle b :  undo <unfasten a button> c :  detach <unfasten a boat from its moorings>

Examples of unfasten

  1. <gently unfastened the strings of the baby's hood>



14th Century

First Known Use of unfasten

14th century

Rhymes with unfasten



Seen and Heard

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

WORD OF THE DAY

February 12, 2016

of, relating to, or suggestive of marble

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

2.2 pounds 16.96 pounds 100 pounds 196.5 pounds
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