starchy

他那古板的态度让聚会的气氛变得很紧张。

His ___starchy demeanor made the party atmosphere quite tense.

他礼貌但刻板的举止让气氛变得有些拘谨。

His polite but ___starchy manner made the atmosphere a bit stiff.

这种米饭煮出来有点粉粉的，不太好吃。

The cooked rice turned out a bit ___starchy and didn't taste very good.