lossless
adjective
Simple meaning
Not losing information.
Pronunciation
Say it like this:
lawslisSay the bold part a little louder.
IPA pronunciation (US)
ˈlɔslɪs
This word is pronounced essentially the same in American and British English, so one transcription covers both.
IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.
Definition
Everyday modern meanings first, grouped by part of speech.
adjective
information theory
Not losing information.
Free from loss, especially not losing electrical energy or force.
Word at a Glance
- Difficulty
- B2 · Upper Intermediate (estimated)
- Frequency
- Uncommon
Word Aura™
How this word commonly comes across.
Aura for this meaning
This meaning: (information theory) Not losing information.
Used this way, lossless is a reasonably familiar word that usually carries little praise or criticism of its own. It turns up most in academic writing contexts.
- Emotional tone
- Neutral
- Formality
- Neutral
- Intensity
- Not strongly marked
- How common
- Moderately common
- Connotation
- No strong connotation
- Usage feel
- Neutral and straightforward
Where it naturally appears
- Academic writing
Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.
Share your sentence
Common Patterns and Combinations
How this word naturally appears with others.
Losing
Characterized
Tap the highlighted word to open its own entry.
Word Family
Related forms, grouped by how they connect.
Word family
Words built from the same root.
Characterized by or causing dissipation of energy.
Ask Vocabaura
Understand the word your way.
What Does It Mean Here?
Words can change meaning depending on context.
Use it yourself
Keep learning “lossless” by choosing the kind of practice you need next.
- Practice sentence writingWrite sentences with vocabulary and get instant feedback.
- Practice in contextAnswer short vocabulary questions drawn from real situations.
- Review vocabularyTest your recall and strengthen words over time.
- Practice typingType vocabulary from meanings, examples and other prompts.
Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.