stellar

stellar — adjective

1. relating to stars that exist in outer space

1.adjectiveB2
Definition

relating to stars that exist in outer space

Example

The new telescope can capture images of stellar surfaces in great detail.

attributive: stellar + noun (surface, system, dust)

Élise presented her findings on how stellar dust clouds give birth to new planets.

Common collocations
  • stellar surface
  • stellar system
  • stellar formation
  • stellar explosion
  • stellar dust
  • stellar object
Synonyms
  • astral

    more poetic or mystical in tone; rare in modern scientific texts

  • sidereal

    a technical term used in astronomy for measurements based on the stars

Usage Note

This is the only literal sense. It usually appears before a noun (attributive position) in scientific writing about astronomy.

Common Mistakes

The night sky was full of stellar light.
The night sky was full of starlight.
'stellar' is an adjective meaning 'of stars'; do not use it as a noun.

2. extremely good in quality or performance

2.adjectiveB2
Definition

extremely good in quality or performance

Example

The chef prepared a stellar three-course dinner that left all the guests speechless.

attributive: stellar + noun (meal, review, work, career)

Rohan earned a stellar evaluation from his manager for completing the project ahead of schedule.

Common collocations
  • stellar performance
  • stellar review
  • stellar work
  • stellar career
  • stellar reputation
  • stellar rating
Synonyms
  • outstanding

    more formal; common in written school reports and job appraisals

  • exceptional

    stronger than stellar; suggests something rare and remarkable

  • superb

    similar register to stellar but slightly more emphatic in tone

Antonyms
  • mediocre

    average or below average; the direct opposite

  • poor

    low quality; far below stellar standards

Usage Note

This figurative sense is common in everyday conversation, online reviews, and informal feedback. It always appears before a noun.

Common Mistakes

The report was stellar with mistakes.
The report had a stellar rating.
'stellar' means excellent, not 'full of stars' or 'full of' something.

Word family

Synonym discussion

Sense: adjective/2

All four words describe very high quality, but they differ in register and nuance. 'Stellar' is the most informal and often appears in everyday conversation, reviews, and casual feedback. 'Outstanding' is the most common in formal written evaluations, such as school reports or job appraisals. 'Exceptional' is stronger and implies that the person or thing stands out from almost everything else in its category. 'Superb' carries a tone of admiration and is slightly more emphatic than 'stellar'. 'Brilliant' overlaps with 'stellar' in informal use but can also describe intelligence. For example: 'The team did a stellar job on the campaign' (friendly workplace praise), whereas 'She received an outstanding evaluation from the board' (formal committee assessment). 'His performance was exceptional, even by Olympic standards' sounds notably stronger than a simple 'stellar'.

outstanding ↗exceptional ↗superb ↗brilliant ↗

Etymology

LatinEnglish

From Latin 'stella' meaning 'star', via the adjective 'stellaris' ('of a star'). The word entered English in the mid-17th century as a purely astronomical term. Around the late 19th century, speakers began using it figuratively to mean 'brilliant' or 'outstanding', comparing excellent people or things to the brightness of stars in the sky.