If you describe a person or their behaviour as uninhibited, you mean that they express their opinions and feelings openly, and behave as they want to, without worrying what other people think.
例句
...a commanding and uninhibited entertainer...氣場強大、狂放不羈的藝人The dancing is uninhibited and as frenzied as an aerobics class...舞跳得非常奔放，就像在做有氧健身操一樣瘋狂。