Theory Synonyms

Theory is a noun. Its synonyms include hypothesis, thesis, conjecture, supposition, speculation, postulation, postulate, proposition, premise, and surmise. Its antonyms are fact and practice. Here are some additional synonyms for "theory" with example sentences.

Another word for theory

34 other ways to say theory.

  • hypothesis
  • conjecture
  • speculation
  • postulate
  • premise
  • assumption
  • presupposition
  • guess
  • feeling
  • opinion
  • belief
  • thought(s)
  • contention
  • ideas
  • principled explanations
  • philosophy
  • system of ideas
  • thesis
  • supposition
  • postulation
  • proposition
  • surmise
  • presumption
  • notion
  • hunch
  • suspicion
  • view
  • thinking
  • judgement
  • principles
  • concepts
  • laws
  • ideology
  • science

Theory Sentences

His theory explained the phenomenon clearly.

The theory was widely accepted initially.

They proposed a new scientific theory.

She challenged the existing theory effectively.

Theory Rhymes