Must rethink mushrooms with 考えを改めなあかん

Manga panel from あずまんが大王 showing example of Must rethink mushrooms with 考えを改めなあかん.
あずまんが大王 » Volume 2年生 » Page 122

Ayumu says she’s never had matsutake mushrooms and asks Sakaki if they’re any different from shiitake mushrooms. Sakaki says they’re completely different, which throws off Ayumu’s belief that matsutake mushroom were an improved shiitake.

歩(あゆむ):
「これは考(かんが)えを改(あらた)めなあかんっ」
“I'll have to rethink this!”
Literal: “This (means) (I) must revise (my) thinking.”

Key Points

1改(あらた)めなあかん = “have to revise” in Kansai speech
  • Start with 改(あらた)めない, the negative form of 改(あらた)める, and replace ない with な + あかん.
  • In standard Japanese, the same idea would be 改(あらた)めなければならない or 改(あらた)めないといけない.
2考(かんが)えを改(あらた)める = “rethink”
  • 考(かんが)え is the “idea” or “way of thinking”, and 改(あらた)める means “change” or “revise”. Together they mean changing your mind about something.
3これは points back to Sakaki’s correction
  • It frames the new information as “given this” or “this means”, rather than referring to a physical object.
4Sentence-final っ gives the line a clipped finish
  • The small っ shows Ayumu cutting the line off sharply as she resolves to rethink her assumption.

Vocabulary

(This)

これ points to something close to the speaker, or to the thing just mentioned.

(Idea)

考(かんが)え is a thought, idea, or opinion.

(To change)

改(あらた)める is to change something for the better. 考えを改める means to rethink one’s view.

See Also

あずまんが大王 © its respective creators. It is used here for educational commentary.