ultrareliable

adjective

ul·​tra·​re·​li·​able ˌəl-trə-ri-ˈlī-ə-bəl How to pronounce ultrareliable (audio)
: very capable of being trusted or relied on : extremely or extraordinarily reliable or dependable
an ultrareliable system/performer

Keep scrolling for more

Word History

First Known Use

1914, in the meaning defined above

Time Traveler
The first known use of ultrareliable was in 1914

Dictionary Entries Near ultrareliable

Cite this Entry

“Ultrareliable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrareliable. Accessed 1 Oct. 2022.

Keep scrolling for more

Love words? Need even more definitions?

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


Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ