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allusive vs. elusive

[uh-loo-siv] / əˈlu sɪv /

adjective

  1. having reference to something implied or inferred; containing, abounding in, or characterized by allusions.

  2. Obsolete. metaphorical; symbolic; figurative.

[ih-loo-siv] / ɪˈlu sɪv /
Also elusory

adjective

  1. eluding or failing to allow for or accommodate a clear perception or complete mental grasp; hard to express or define.

    an elusive concept.

  2. cleverly or skillfully evasive.

    a fish too elusive to catch.

    Synonyms:
    baffling, puzzling, shifty, slippery, tricky
  3. difficult to find.

    hoping that elusive donors will finally contribute.