思い込み・思いこみ|おもいこみomoikomi[0]heiban (flat)

1. nounwrong impression; subjective impression; assumption; prejudice

• Related先入観せんにゅうかんNeutralA common word for views formed in advance, as in 「先入観を捨てる」; the everyday term for preconceptions.
• Related偏見へんけんNeutralBiased, one-sided views, often about people or groups, as in 「偏見を持つ」; it carries more weight than 「思い込み」.
• Related偏りかたよりNeutralA leaning or deviation, as in 「栄養の偏り」; broad in scope and not limited to ideas or beliefs.
• RelatedバイアスNeutralA loanword for cognitive bias or a leaning in judgment, as in 「確証バイアス」; somewhat technical in tone.
• Related先入見せんにゅうけんWrittenA written-style noun for preconceived ideas; it means the same as 「先入観」 but is used less often.
• Related先入主せんにゅうしゅWrittenA written-style word for preconceptions; most often seen in the set phrase 「先入主となる」.
• Related僻見へきけんWrittenA written word for a biased view or opinion; rarely seen in modern Japanese.
• Related偏執へんしゅうWrittenA written word for obstinacy and fixation; it stresses clinging to one's own ideas, unlike a momentary misperception.
• Related偏った考えかたよったかんがえNeutralA plain, direct phrase for one-sided ideas; it stresses that a view is out of balance.
• Antonym疑いうたがいNeutralDoubt or suspicion; the opposite of 「思い込み」, which is believing something firmly without question.
• Antonym懐疑かいぎWrittenA written-style word for an attitude of doubt, as in 「懐疑的」; it stands opposite blind belief.

Use 「思い込み」 for a mistaken belief you hold firmly, as in 「思い込みが激しい」. For preconceptions pick 「先入観」, for biased views 「偏見」, and for cognitive bias 「バイアス」; for doubt, use 「疑い」.

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

1. そうであると固かたく信しんじていること。
2. 深ふかく決心けっしんしていること。