invariant

Definitions of invariant
  1. adjective
    unvarying in nature
    synonyms: changeless, constant, unvarying
    invariable
    not liable to or capable of change
  2. adjective
    unaffected by a designated operation or transformation
    Synonyms:
    invariable
    not liable to or capable of change
  3. noun
    a feature (quantity or property or function) that remains unchanged when a particular transformation is applied to it
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    type of:
    characteristic, feature
    a prominent attribute or aspect of something
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