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Surmise vs Presume - What's the difference?

surmise | presume |

As verbs the difference between surmise and presume

is that surmise is to conjecture, to opine or to posit with contestable premises while presume is to perform, do (something) without authority; to lay claim to without permission.

As a noun surmise

is thought, imagination, or conjecture, which may be based upon feeble or scanty evidence; suspicion; guess.

surmise

English

Noun

(en noun)
  • Thought, imagination, or conjecture, which may be based upon feeble or scanty evidence; suspicion; guess.
  • surmises of jealousy or of envy
  • * Jonathan Swift
  • No man ought to be charged with principles he actually disowns, unless his practices contradict his profession; not upon small surmises .
  • * 1919 ,
  • The meeting had been devoid of incident. No word had been said to give me anything to think about, and any surmises I might make were unwarranted. I was intrigued.
  • Reflection; thought; posit.
  • (Shakespeare)

    Verb

    (surmis)
  • To conjecture, to opine or to posit with contestable premises.
  • presume

    English

    Alternative forms

    * (archaic)

    Verb

    (presum)
  • Don't make the decision yourself and presume too much.
  • With infinitive object: to be so presumptuous as (to do something) without proper authority or permission.
  • I wouldn't presume to tell him how to do his job.
  • To assume to be true (without proof); to take for granted, to suppose.
  • * 2011 , John Patterson, The Guardian , 5 Feb 2011:
  • If we presume that human cloning may one day become a mundane, everyday reality, then maybe it's time to start thinking more positively about our soon-to-arrive genetically engineered pseudo-siblings.
  • To be presumptuous; with (on), (upon), to take advantage (of), to take liberties (with).
  • * 1994 , Nelson Mandela, Long Walk to Freedom , Abacus 2010, p. 75:
  • Piliso then vented his anger on us, accusing us of lying to him. He said we had presumed on his hospitality and the good name of the regent.

    Quotations

    * Paw prints in the snow presume a visit from next door's cat. * Dr. Livingstone, I presume ?

    Synonyms

    * (l)

    Derived terms

    * presumed perpetrator

    Anagrams

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