Theory synonyms | nouns

Synonyms for Theory as a Noun

• hypothesis

  belief, notion
• speculation

  hypothesis, belief
• supposition

  hypothesis, idea
• thesis

  hypothesis, conjecture
• assumption

  hypothesis, opinion
• conjecture

  hypothesis, belief
• postulate

  idea, assumption
• philosophy

  perception, fundamental principle
• premise

  reason
• surmise

  guess
• idea

  notion, guess
• opinion

  assumption
• view

  opinion, perception
• concept

  notion
• guess

  opinion, assumption
• suspicion

  guess
• rationale

  opinion
• presumption

  conjecture
• thought

  notion, opinion
• notion
• belief
• feeling
• presupposition

  conjecture, reason
• conception

  perception, fundamental principle
• theorem

  assumption
• doctrine
• proposition

  conjecture
• ideology

  philosophy
• hunch

  conjecture
• impression
• postulation

  reason
• argument
• proposal
• plan

  idea
• basis

  fundamental principle
• abstraction

  notion
• estimation

  assumption
• possibility
• position
• guesswork
• outlook

  perception
• estimate
• judgment
• dogma
• understanding
• system
• base
• conviction
• thinking
• sentiment