仮説|かせつkasetsu[0]heiban (flat)

1. nounhypothesis; supposition; assumption; tentative theory
   これらのデータはその仮説かせつを支持しじしている。↗

   This data supports the hypothesis.

• Synonym仮定かていNeutralNeutral. A premise you assume for the sake of argument, regardless of the facts; 「仮説」 is an explanation of a phenomenon that still needs testing.
• Related想定そうていNeutralNeutral. Envisioning or assuming a situation, common in business and disaster planning, as in 「想定外」; it sets up scenarios, not explanations to verify.
• Related予測よそくNeutralNeutral. Predicting future events in advance, based on data or experience; unlike 「仮説」, it is not a theory awaiting verification.
• Related推定すいていNeutralNeutral. Presuming or estimating from circumstances, often in legal or statistical use such as 「推定年齢」; the emphasis is on estimation.
• Related推測すいそくNeutralNeutral. Guessing at something from clues; everyday and common, while 「仮説」 is an explanation set up to be tested.
• Related推察すいさつNeutralNeutral. Surmising a situation or another person's thoughts, as in 「ご推察の通り」; unlike 「仮説」, it does not offer an explanation to be tested.
• Related推論すいろんNeutralNeutral. The process of reasoning logically from facts to a conclusion; it is the derivation itself, not a hypothesis like 「仮説」.
• Related推量すいりょうNeutralNeutral. Conjecture or supposition; leans toward grammatical use, as in 「推量の助動詞」, and is not itself a testable theory.
• Related臆度おくたくWrittenWritten/formal prose. Groundless guessing; rare even in written Japanese, stressing the lack of any basis rather than a theory to test.
• Related揣摩しまWrittenWritten/formal prose. Rare in writing and mostly seen in 「揣摩臆測」; it suggests baseless surmising and carries a negative shade.
• Related憶説おくせつWrittenWritten/formal prose. A view asserted without grounds, often derogatory; unlike 「仮説」, a legitimate provisional theory.
• Related憶断おくだんWrittenWritten/formal prose. Jumping to a hasty conclusion from conjecture, with a critical tone; unlike a hypothesis held for testing.
• Related当て推量あてずいりょうCasualColloquial. Wild guessing on unreliable grounds; unlike 「仮説」, which is set up deliberately and then verified.
• Related揣摩臆測しまおくそくWrittenWritten/formal prose. A set phrase for idle, baseless speculation, carrying a critical tone; far from a testable 「仮説」.
• Antonym定説ていせつNeutralNeutral. An established theory or accepted view; the opposite of 「仮説」, which is still provisional and awaiting verification.

Use 「仮説」 for a provisional theory proposed to explain something and awaiting verification, as in 「仮説を立てる」「仮説を検証する」. For an assumed premise pick 「仮定」, an envisioned situation 「想定」, a prediction 「予測」; words like 「推定」「推測」 handle inference and estimation, while 「当て推量」「憶断」 and the like mean groundless or hasty guessing. The opposite is 「定説」, an accepted theory.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. まだ分わかっていない事象じしょうなどを説明せつめいするための仮定かていの説せつ。