Synonym Nuance VS
How to say "Be" in Japanese
Both words can translate to "be", but which should you choose?
Japanese Option A
退屈する
たいくつする (taikutsu suru)
N3 / CEFR Syllabus
VS
Japanese Option B
思い込む
おもいこむ (omoikomu)
N3 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "be" into Japanese, you must choose carefully between 退屈する and 思い込む.
In Japanese, 退屈する (たいくつする (taikutsu suru)) is typically associated with "to be bored" (Syllabus Level: N3) and represents 動詞。興味がなく、時間を持て余す様子を表す。e.g., 授業に退屈する.
On the other hand, 思い込む (おもいこむ (omoikomu)) maps to "to be under the impression that, to be convinced that, to be deluded into thinking" (Syllabus Level: N3) and represents To firmly believe something, often mistakenly, or to become deeply convinced of a belief. It implies a strong, sometimes incorrect, conviction.. A literal translation of "be" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "退屈する"
することもなく、テレビを見ていたら退屈してきた。
Having nothing to do, I watched TV and got bored.
Bilingual Context for "思い込む"
彼は自分が天才だと思い込んでいる。
He is convinced that he is a genius.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "することもなく、テレビを見ていたら退屈してきた。" (Meaning: "Having nothing to do, I watched TV and got bored.")
🎉 Correct Answer!
Remember: "退屈する" fits here because it means "to be bored" in the context of: "Having nothing to do, I watched TV and got bored.". "思い込む" represents "to be under the impression that, to be convinced that, to be deluded into thinking".