むっつりsullenly, taciturnly, morosely, gloomily, silently, taciturn person, uncommunicative person

むっつりした人(ひと)とは友達(ともだち)になりにくい。

It's hard to become friends with a taciturn or uncommunicative person. {sullenly, taciturnly, morosely, gloomily, silently, taciturn person, uncommunicative person}

むっつりと黙(だま)っている彼(かれ)は不機嫌(ふきげん)なのだろうか。

Could he be in a bad mood, sitting there silently and sullenly? {sullenly, taciturnly, morosely, gloomily, silently, taciturn person, uncommunicative person}

デート中(ちゅう)、彼(かれ)は終始(しゅうし)むっつりしていて気(き)まずかったです。

During the date, he was sullen the whole time, which made it awkward. {sullenly, taciturnly, morosely, gloomily, silently, taciturn person, uncommunicative person}

彼(かれ)は上司(じょうし)に自分(じぶん)の提案(ていあん)が却下(きゃっか)され、むっつりとしていました。

He was sullen after his proposal was rejected by his boss. {sullenly, taciturnly, morosely, gloomily, silently, taciturn person, uncommunicative person}

普段(ふだん)むっつりとしている彼(かれ)がペラペラ喋(しゃべ)る様子(ようす)は想像(そうぞう)できません。

I can't imagine him, who is usually taciturn, chattering away. {sullenly, taciturnly, morosely, gloomily, silently, taciturn person, uncommunicative person}