むっとto be sullen, to be offended, to be huffy, to be petulant, to be indignant, to be stuffy, to be stifling, to be muggy, slowly (exhaling smoke)

友達(ともだち)の小言(こごと)にムッとする。

I get offended by my friend's nagging. {to be sullen, to be offended, to be huffy, to be petulant, to be indignant, to be stuffy, to be stifling, to be muggy, slowly (exhaling smoke)}

真夏(まなつ)の電車(でんしゃ)は空気(くうき)がムッとしている。

The air in the train during midsummer is stifling. {to be sullen, to be offended, to be huffy, to be petulant, to be indignant, to be stuffy, to be stifling, to be muggy, slowly (exhaling smoke)}

赤(あか)ちゃんがムッとした顔(かお)で何(なに)かを訴(うった)えています。

The baby is expressing something with a sullen face. {to be sullen, to be offended, to be huffy, to be petulant, to be indignant, to be stuffy, to be stifling, to be muggy, slowly (exhaling smoke)}

ゴミ箱(ばこ)の蓋(ふた)を開(あ)けると、悪臭(あくしゅう)がムッと鼻(はな)をつきました。

When I opened the lid of the trash can, a foul smell hit my nose, as stifling as a muggy day. {to be sullen, to be offended, to be huffy, to be petulant, to be indignant, to be stuffy, to be stifling, to be muggy, slowly (exhaling smoke)}

悪口(わるぐち)を言(い)われたのなら、ムッとするのも当然(とうぜん)だと思(おも)います。

If someone has spoken ill of you, I think it's natural to feel offended. {to be sullen, to be offended, to be huffy, to be petulant, to be indignant, to be stuffy, to be stifling, to be muggy, slowly (exhaling smoke)}