What is the difference between "深い" and "不快"?

"深い" means "deep, profound" (N4), whereas "不快" represents "unpleasant; discomfort; displeasure" (N3).

Kanji Homophone Battle

Pronunciation Trap: "ふかい (fukai)"

Same sound, completely different Kanji! Choose the right conceptual writing.

Kanji Option A

ふかい (fukai)

N4 / CEFR

Kanji Option B

ふかい (fukai)

N3 / CEFR

In Japanese, many words share the exact same pronunciation "ふかい (fukai)" but are written with different Kanji, changing the meaning entirely.

深い (Level: N4): Translates to "deep, profound" and is used when い-adjective. Describes significant vertical extent downward.
不快 (Level: N3): Maps to "unpleasant; discomfort; displeasure" and carries the nuance of 不快.

Mixing these up can easily result in unnatural writing. Look at the bilingual context cards below to master the conceptual boundaries!

Bilingual Context for "深い"

この海はとても深くて、底が見えない。

This sea is very deep; I can't see the bottom.

Bilingual Context for "不快"

彼の言動は私にとって非常に不快でした。

His words and actions were very unpleasant for me.

Which Kanji perfectly fits this blank space?

Which Kanji perfectly fits the blank: "この海はとても深くて、底が見えない。" (Meaning: "This sea is very deep; I can't see the bottom.")

🎉 Correct Answer!

Correct! "深い" is used for "deep, profound" in the context: "This sea is very deep; I can't see the bottom.".