推測|すいそくsuisoku[0]heiban (flat)
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Definitions
- suru verb, transitive verb, no-adjectiveguess; conjecture
Conjugation
| Dictionary form | 推測する（すいそくする） |
|---|---|
| Polite (masu) | 推測します（すいそくします） |
| Negative (nai) | 推測しない（すいそくしない） |
| polite (masen) | 推測しません（すいそくしません） |
| classical zu / nu | 推測せず・推測せぬ（すいそくせず・すいそくせぬ） |
| Past (ta) | 推測した（すいそくした） |
| polite (mashita) | 推測しました（すいそくしました） |
| Past negative (nakatta) | 推測しなかった（すいそくしなかった） |
| polite (masen deshita) | 推測しませんでした（すいそくしませんでした） |
| Te form | 推測して（すいそくして） |
| Potential | 推測できる（すいそくできる） |
| Passive | 推測される（すいそくされる） |
| Causative | 推測させる（すいそくさせる） |
| Causative passive | 推測させられる（すいそくさせられる） |
| Conditional (ba) | 推測すれば（すいそくすれば） |
| tara | 推測したら（すいそくしたら） |
| Volitional | 推測しよう（すいそくしよう） |
| polite (mashou) | 推測しましょう（すいそくしましょう） |
| Imperative | 推測しろ（すいそくしろ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- Synonym憶測おくそくNeutralSpeculation built on uncertain grounds, often with a negative nuance, as in 「憶測が飛び交う」. 「推測」 rests on comparatively reliable evidence.
- Synonym推論すいろんWrittenWritten-style word for drawing a conclusion by logical inference or deduction; 「推測」 is about conjecturing from clues.
- Synonym推量すいりょうWrittenWritten style. Conjecture, including guessing at someone's feelings; 「推測」 leans more objective.
- Synonym推定すいていNeutralPresuming a fact or figure from the circumstances, as in 「推定年齢」; common in law and statistics. 「推測」 is the more everyday word.
- Synonym推察すいさつNeutralSurmising a situation or another person's feelings, as in 「ご推察の通り」; more deferential than 「推測」, which is the more objective term.
- Synonym忖度そんたくNeutralReading someone's mind or true intentions; lately often pejorative, for pandering to a superior's unspoken wishes. 「推測」 is neutral.
- Synonym見当けんとうNeutralA rough estimate or guess, as in 「見当がつく」. 「推測」 is the more formal word.
- Synonym推理すいりNeutralLogical reasoning from premises, and by extension detective fiction. 「推測」 is closer to conjecturing from clues.
- Synonym予測よそくNeutralPredicting what lies ahead — the future. 「推測」 can also concern the present or the past.
- Synonym推し量るおしはかるNeutralA native verb for surmising matters or someone's feelings. 「推測」 is a Sino-Japanese compound, also used as 「推測する」, and leans objective.
- Synonym思うおもうNeutralThe all-purpose verb for thinking or feeling that something is so. 「推測」 specifically means inferring from clues.
- Synonym推知すいちWrittenWritten and rare: to come to know something by inference. In everyday speech, say 「推測」.
- Synonym推考すいこうWrittenWritten and rare: pondering and surmising. In daily use, say 「推測」.
- Synonym推断すいだんNeutralDrawing a conclusion from facts. 「推測」 is closer to guesswork — weighing clues and conjecturing.
- Synonym臆度おくたくWrittenWritten and rare: groundless guessing. In everyday language say 「憶測」.
- Related類推るいすいWrittenReasoning by analogy — inferring something from its resemblance to something else. 「推測」 is the broader term for conjecture.
- Related想像そうぞうNeutralImagination — picturing something in your head, not necessarily on any evidence. 「推測」 infers from clues.
- Related仮想かそうNeutralHypothetical or virtual, as in 「仮想現実」. 「推測」 is about conjecturing how things actually are.
- Related割り出すわりだすNeutralTo work something out — calculate it or pin it down, as in 「犯人を割り出す」. 「推測」 is mere conjecture.
- Related仮定かていNeutralAssuming a condition for the sake of argument, as in 「仮定の話」. 「推測」 is conjecture about what is true.
- Related決め込むきめこむNeutralTo arbitrarily take something for granted, or to pretend, as in 「無視を決め込む」. 「推測」 is conjecturing.
- Related想定そうていNeutralEnvisaging a situation or condition in advance, as in 「想定外」. 「推測」 is inferring the actual facts from clues.
- Related仮説かせつWrittenA hypothesis, especially in science, offered to explain something. 「推測」 is ordinary conjecture.
- Related推算すいさんNeutralCalculating a figure from data, an estimate worked out numerically. 「推測」 is conjecturing, not computing.
- Related計り知るはかりしるNeutralMostly seen in the negative 「計り知れない」, 'immeasurable'. 「推測」 is the act of conjecturing itself.
- Related憶説おくせつWrittenWritten style: an opinion or claim with no basis behind it. 「推測」 has at least some grounds.
- Related憶断おくだんWrittenWritten style: jumping to a hasty, rash conclusion. 「推測」 is simply conjecturing.
- Antonym断定だんていNeutralAntonym: to assert or conclude something definitively, where 「推測」 only ventures a guess.
Default to 「推測」 when you infer the real situation from clues. Choose 「憶測」 for guesswork on uncertain grounds, 「推察」 for deferentially surmising feelings, 「推定」 for presuming facts or figures (law, statistics), 「推理」 for logical reasoning, and 「予測」 for the future; 「断定」 is its antonym. Most of the rest are written-style or narrow in use, and 臆度, 推知, 推考 are rare — in everyday speech 「推測」 will do.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
English equivalents
See also
