Not relaxed or calm; tense.

Unpleasantly intense or stressful.

Lacking a laid-back attitude or vibe.

Strict, serious, and lacking humor.

Disapproving of casualness; overly formal demeanor.

Emotionally charged; fraught with anxiety.

To provoke anxiety or tension in someone.

To disrupt a calm environment or mood.

To create pressure in social situations.

To make an event feel more intense than relaxed.

To introduce stress into a laid-back setting.