Worrier

noun

Definitions

Noun
  1. 1
    A person who worries a great deal, especially unnecessarily.

    "You are such a worrier! I'm sure everything will turn out all right."

  2. 2
    thinks about unfortunate things that might happen wordnet
  3. 3
    A person who causes worry in others.
  4. 4
    An animal that seizes or shakes another by the throat.

    "The person owning a dog which had destroyed sheep could be made to pay for the damage; but the Court should also have an undoubted power to order incurable sheep-worriers to be destroyed."

Etymology

From worry + -er.

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