思い込む (omoikomu) Japanese meaning: be convinced | Kotomora

思おもい込こむ

お

も

い

こ

む

Common wordJLPTN2Freq.FrequencyTop 50,000

思い込む · godan verb (-mu)

Form	Positive	Negative
Dictionary	思おもい込こむ	思おもい込こまない
Polite	思おもい込こみます	思おもい込こみません
Past polite	思おもい込こみました	思おもい込こみませんでした
Past	思おもい込こんだ	思おもい込こまなかった
Te-form	思おもい込こんで	思おもい込こまないで
Desire	思おもい込こみたい	思おもい込こみたくない
Potential	思おもい込こめる	思おもい込こめない
Passive	思おもい込こまれる	思おもい込こまれない
Causative	思おもい込こませる	思おもい込こませない
Causative passive	思おもい込こませられるalso 思おもい込こまされる	思おもい込こませられないalso 思おもい込こまされない
Volitional	思おもい込こもう
Polite volitional	思おもい込こみましょう
Imperative	思おもい込こめ	思おもい込こむな
Conditional	思おもい込こめば	思おもい込こまなければ
Tara conditional	思おもい込こんだら	思おもい込こまなかったら

Meanings

godan verb (-mu), intransitive verb

be convinced; be under the impression; assume

Used when someone firmly believes something, often with と or と思い込む. It commonly implies the belief may be mistaken or too strong.

彼かれは自じ分ぶんが正ただしいと思おも

Kanji

思think
込crowded, mixture, in bulk

Related words

信しんじ込こむN2sense 1
信じ込む emphasizes firmly believing something as literally true, while 思い込む often implies an assumption or fixed idea that may be mistaken.
決けっ心しんN3sense 2
決心する is a neutral, straightforward word for deciding or resolving to do something, whereas 思い込む can sound more emotionally fixed or self-convincing when used for determination.
思おもい詰つめる sense 3
思い詰める means to brood or worry intensely with a darker emotional tone, while 思い込む is broader and can describe mistaken belief, determination, or fixation.
決きめ付つけるN1
思い込む describes privately believing something without basis, whereas 決め付ける usually implies imposing that judgment on someone else.

Opposites

疑うたがうN3sense 1
疑う means to doubt or suspect something is untrue, the opposite of 思い込む's sense of being firmly convinced something is true.

Don't confuse with

思おもいつくN2
思いつく means to suddenly come up with an idea, while 思い込む means to become fixed in a belief or assumption; learners confuse them due to the shared 思い-.
考かんがえ込こむN2
思い込む means to become firmly convinced of something (often mistakenly), while 考え込む means to sink deeply into thought without necessarily reaching a conclusion.
思おもい上あがるN1
思い込む means to become convinced of something (often mistakenly), while 思い上がる specifically means to become conceited about oneself; learners confuse them because both start with 思い.

Word family

思おもい込こみ
assumption; preconception; jumping to conclusions

Built from

思おもう+込こむ

Written forms

思おもい込こむUsage63%
Standard mixed kanji-kana spelling; this form is high priority.
思おもいこむUsage36%
Attested mixed spelling with こむ in hiragana; usable, but less standard than 思い込む.
おもいこむUsage1%

Etymology

A compound of 思う, 'to think, feel,' and 込む, which in compounds often adds a sense of entering deeply or becoming absorbed. The spelling conventionally reflects the idea of a thought becoming fixed or internalized.

Meanings

Usage patterns