A judgment, estimate, or opinion arrived at by guessing

• surmise

  1. To make a judgment about (something) without sufficient evidence; guess:
  2. To say (something) as a guess or conjecture.
  3. To make a guess or conjecture.

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  1. To make a judgment about (something) without sufficient evidence; guess:
  2. To say (something) as a guess or conjecture.
  3. To make a guess or conjecture.

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• speculation

  1. Reasoning based on inconclusive evidence; conjecture or supposition.
  2. A conclusion, opinion, or theory reached by conjecture.
  3. Contemplation or consideration of a subject; meditation.

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  1. Reasoning based on inconclusive evidence; conjecture or supposition.
  2. A conclusion, opinion, or theory reached by conjecture.
  3. Contemplation or consideration of a subject; meditation.

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• guesswork

  1. The process of making guesses.
  2. An estimate or judgment made by guessing.

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  1. The process of making guesses.
  2. An estimate or judgment made by guessing.

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• guess

  1. To predict (a result or an event) without sufficient information.
  2. To assume, presume, or assert (a fact) without sufficient information.
  3. To form a correct estimate or conjecture of:

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  1. To predict (a result or an event) without sufficient information.
  2. To assume, presume, or assert (a fact) without sufficient information.
  3. To form a correct estimate or conjecture of:

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• conjecture

  1. Opinion or judgment based on inconclusive or incomplete evidence; guesswork.
  2. An opinion or conclusion based on guesswork:
  3. To judge or conclude by conjecture; guess:

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  1. Opinion or judgment based on inconclusive or incomplete evidence; guesswork.
  2. An opinion or conclusion based on guesswork:
  3. To judge or conclude by conjecture; guess:

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Something taken to be true without proof

• thesis

  1. A proposition that is maintained by argument.
  2. A dissertation advancing an original point of view as a result of research, especially as a requirement for an academic degree.
  3. A hypothetical proposition, especially one put forth without proof.

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  1. A proposition that is maintained by argument.
  2. A dissertation advancing an original point of view as a result of research, especially as a requirement for an academic degree.
  3. A hypothetical proposition, especially one put forth without proof.

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• theory

  1. A set of statements or principles devised to explain a group of facts or phenomena, especially one that has been repeatedly tested or is widely accepted and can be used to make predictions about natural phenomena.
  2. The branch of a science or art consisting of its explanatory statements, accepted principles, and methods of analysis, as opposed to practice:
  3. A set of theorems that constitute a systematic view of a branch of mathematics.

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  1. A set of statements or principles devised to explain a group of facts or phenomena, especially one that has been repeatedly tested or is widely accepted and can be used to make predictions about natural phenomena.
  2. The branch of a science or art consisting of its explanatory statements, accepted principles, and methods of analysis, as opposed to practice:
  3. A set of theorems that constitute a systematic view of a branch of mathematics.

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• presupposition

  1. An assumption made beforehand; a preliminary conjecture or speculation.
  2. The act of presupposing.

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  1. An assumption made beforehand; a preliminary conjecture or speculation.
  2. The act of presupposing.

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• premise

  1. A proposition upon which an argument is based or from which a conclusion is drawn.
  2. One of the propositions in a deductive argument.
  3. Either the major or the minor proposition of a syllogism, from which the conclusion is drawn.

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  1. A proposition upon which an argument is based or from which a conclusion is drawn.
  2. One of the propositions in a deductive argument.
  3. Either the major or the minor proposition of a syllogism, from which the conclusion is drawn.

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• postulation

  1. The act of postulating or something postulated
  2. (logic) Something self-evident that can be assumed as the basis of an argument

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  1. The act of postulating or something postulated
  2. (logic) Something self-evident that can be assumed as the basis of an argument

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• postulate

  1. To assume or assert the truth, reality, or necessity of, especially as a basis of an argument:
  2. To propose as a hypothesis or explanation:
  3. To assume as a premise or axiom; take for granted.

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  1. To assume or assert the truth, reality, or necessity of, especially as a basis of an argument:
  2. To propose as a hypothesis or explanation:
  3. To assume as a premise or axiom; take for granted.

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• assumption

  1. The act of taking to or upon oneself:
  2. The act of taking possession or asserting a claim:
  3. The act of taking for granted:

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  1. The act of taking to or upon oneself:
  2. The act of taking possession or asserting a claim:
  3. The act of taking for granted:

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A guess

• speculation

  1. Reasoning based on inconclusive evidence; conjecture or supposition.
  2. A conclusion, opinion, or theory reached by conjecture.
  3. Contemplation or consideration of a subject; meditation.

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  1. Reasoning based on inconclusive evidence; conjecture or supposition.
  2. A conclusion, opinion, or theory reached by conjecture.
  3. Contemplation or consideration of a subject; meditation.

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• notion

  1. A belief or opinion:
  2. A mental image; an idea or conception:
  3. An impulse or whim:

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  1. A belief or opinion:
  2. A mental image; an idea or conception:
  3. An impulse or whim:

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• surmise

  1. To make a judgment about (something) without sufficient evidence; guess:
  2. To say (something) as a guess or conjecture.
  3. To make a guess or conjecture.

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  1. To make a judgment about (something) without sufficient evidence; guess:
  2. To say (something) as a guess or conjecture.
  3. To make a guess or conjecture.

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A theory

• likelihood

  1. The state of being probable; probability.
  2. Something probable.

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  1. The state of being probable; probability.
  2. Something probable.

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• thesis

  1. A proposition that is maintained by argument.
  2. A dissertation advancing an original point of view as a result of research, especially as a requirement for an academic degree.
  3. A hypothetical proposition, especially one put forth without proof.

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  1. A proposition that is maintained by argument.
  2. A dissertation advancing an original point of view as a result of research, especially as a requirement for an academic degree.
  3. A hypothetical proposition, especially one put forth without proof.

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• idea

  1. Something, such as a thought or conception, that is the product of mental activity.
  2. An opinion, conviction, or principle:
  3. A plan, purpose, or goal:

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  1. Something, such as a thought or conception, that is the product of mental activity.
  2. An opinion, conviction, or principle:
  3. A plan, purpose, or goal:

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