lossless

adjective

loss·​less ˈlȯs-ləs How to pronounce lossless (audio)
: done or being without loss (as of power or data)
lossless data compression
lossless power transmission

Examples of lossless in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Other music services like Tidal also offer lossless HD audio. — Todd Spangler, Variety, 10 Sep. 2025 Spotify says compressed audio removes data to save bandwidth, while lossless formats maintain full fidelity. — Thomas Westerholm, MSNBC Newsweek, 30 Mar. 2026 On both sides, there are fully USB-C ports and a traditional universal headphone jack (because there are still lossless audio lovers out there). — Kelsey Fogarty, PC Magazine, 17 June 2026 Superconductors are only completely lossless for direct current. — IEEE Spectrum, 26 June 2025 See All Example Sentences for lossless

Word History

First Known Use

circa 1934, in the meaning defined above

Time Traveler
The first known use of lossless was circa 1934

Browse Nearby Words

loss leader
lossless
loss of life
See all Nearby Words

Cite this Entry

“Lossless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lossless. Accessed 8 Jul. 2026.

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Medical Definition

lossless

adjective
loss·​less ˈlȯs-ləs How to pronounce lossless (audio)
: occurring or functioning without loss
lossless electrical transmission in a nerve fiber
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