Dictionary.com
Thesaurus.com

lossless

British  
/ ˈlɒslɪs /

adjective

  1. (of a dielectric material, transmission line, etc) designed to have no attenuation Compare lossy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

On Spotify, the lossless files are larger than the standard formats, meaning the feature can not be used when connected to Bluetooth, as there’s not enough bandwidth to transmit.

From Los Angeles Times • Sep. 11, 2025

Most of Spotify's biggest rivals - including Apple, Tidal, Amazon Music and Qobuz - offer lossless audio, which is closer to CD quality than the compressed files served by Spotify.

From BBC • Mar. 13, 2024

The key to this detection method is that nanowires enter a superconducting state at very low temperatures, in which they lose their electrical resistance and allow lossless current flow.

From Science Daily • Dec. 4, 2023

Room-temperature superconductor claims stir excitement because of the potential applications, such as lossless electrical grids and powerful magnets for trains and medical imaging.

From Science Magazine • Sep. 27, 2023

One cannot have full-screen, full-color images with lossless compression; one must compress them or use a lower resolution.

From Library of Congress Workshop on Etexts by Library of Congress