Meaning & use

vestigial

adjective·Advanced

Last updated

UK/veˈstɪdʒiəl/
US/veˈstɪdʒiəl/

Meanings

  1. adjectivenot comparable

    Remaining as a small, underdeveloped part of something that had a use in an earlier form.

    Grammar: Not usually used with 'more' or 'most'; it describes a state, not a degree.

    Patterns

    • vestigial organ
    • vestigial structure
    • vestigial remains

    The appendix is often called a vestigial organ in humans.

    The wings of the flightless bird are vestigial and too small for flying.

    Some snakes have vestigial legs hidden under their skin.

  2. adjectivenot comparableformal

    Left over from an earlier time and no longer having much purpose or importance.

    Grammar: Used mainly in formal or technical writing to describe outdated features or customs.

    Patterns

    • vestigial custom
    • vestigial feature of something

    The rule is a vestigial feature of the old system and serves no real purpose.

    He saw the ceremony as a vestigial tradition from a forgotten age.

    The company kept a vestigial department that no longer did any work.

Word forms

comparativemore vestigial
superlativemost vestigial

Common combinations

vestigial organ
The human tailbone is a vestigial organ.
vestigial structure
Biologists study vestigial structures to understand evolution.
become vestigial
The wings became vestigial after the birds stopped migrating.
a vestigial remnant
The old law is a vestigial remnant of colonial rule.

Synonyms and how they differ

rudimentary
Means basic or not fully developed; 'vestigial' specifically suggests it was once useful but is now a leftover.
leftover
Informal and general; 'vestigial' is more technical and often used in biology.
remnant
A noun, not an adjective; use 'a remnant' where 'vestigial' would describe the thing itself.

Opposites

functionaldeveloped

Word family

vestige noun
A small remaining trace or part of something that once existed.

Commonly confused: vestigial or vested?

vestigial vs vested

Sounds similar but means having a fixed right or personal interest, as in 'vested interest'.

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