Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

uninterruptible

adjective
un·​interruptible | \ ¦ən+\

Definition of uninterruptible

: not able to be interrupted also : serving as a backup source of electricity in the event of an interruption of normal power (as during a blackout) an uninterruptible power system

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for uninterruptible

un- entry 1 + interruptible

Keep scrolling for more

Learn More about uninterruptible

Statistics for uninterruptible

Look-up Popularity

Comments on uninterruptible

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

Show Comments  Hide Comments 

WORD OF THE DAY

supersede

Listen to the pronounciation of supersede

to take the place or position of

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

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

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play
Ask the Editors
Word Games