妄信・盲信|もうしんmoushin[0]heiban (flat)

Common
ぼうしんboushin
Which spelling to use
盲信盲信 is the more common written form and the one beginners should normally choose.
妄信妄信 is a less common kanji-only variant of 盲信; learners should generally choose 盲信 instead.
Definitions
  1. noun, suru verb, transitive verbblind acceptance; blind belief; credulity
    きちんと分別ぶんべつのある人ひとは決けっして盲信もうしんなどしません。↗
    A person of good sense will certainly not believe blindly.
Conjugation
Dictionary form妄信する(もうしんする)
Polite (masu)妄信します(もうしんします)
Negative (nai)妄信しない(もうしんしない)
polite (masen)妄信しません(もうしんしません)
classical zu / nu妄信せず・妄信せぬ(もうしんせず・もうしんせぬ)
Past (ta)妄信した(もうしんした)
polite (mashita)妄信しました(もうしんしました)
Past negative (nakatta)妄信しなかった(もうしんしなかった)
polite (masen deshita)妄信しませんでした(もうしんしませんでした)
Te form妄信して(もうしんして)
Potential妄信できる(もうしんできる)
Passive妄信される(もうしんされる)
Causative妄信させる(もうしんさせる)
Causative passive妄信させられる(もうしんさせられる)
Conditional (ba)妄信すれば(もうしんすれば)
tara妄信したら(もうしんしたら)
Volitional妄信しよう(もうしんしよう)
polite (mashou)妄信しましょう(もうしんしましょう)
Imperative妄信しろ(もうしんしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym丸呑みまるのみNeutralNeutral. Means taking things as-is, wholesale; also literally swallowing whole. 「提案を丸呑みする」. Fits when the nuance is unconditional acceptance.
  • Related鵜呑みうのみNeutralNeutral. Accepting without thinking; the most common choice in daily use. 「話を鵜呑みにする」. In everyday speech it usually replaces 「盲信」.
  • Antonym懐疑かいぎWrittenWritten/formal prose. Means doubt or skepticism, as in 「懐疑的な見方」. The opposite of blind belief; use it in writing rather than speech.
  • Antonym疑いうたがいNeutralNeutral. Doubt in the everyday sense, common in speech. 「疑いを持つ」. The everyday antonym of 「盲信」.

For blind belief without judging, 「盲信」 works but leans written; in everyday speech say 「鵜呑みにする」, as in 「ネットの情報を鵜呑みにする」. 「丸呑み」 stresses wholesale acceptance; for the opposite, 「疑い」 in speech, 「懐疑」 in writing.

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

Japanese definitions
  1. 訳わけも分わからず信用しんよう、信仰しんこうすること。
Kanji in this word

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