strait-laced

"Next to the vomiting, gurning, maniacally grinning Keaton, she can’t help but seem a little bland and strait-laced."

That article traced her journey from childhood as a male in New York’s strait-laced Westchester County to her decision to transition.

But the very existence of the film, which is loosely based on a seemingly strait-laced community college instructor who moonlighted as a fake assassin for the Houston police, proves just how much they fascinate us.

Singapore was once known as an affluent and strait-laced city-state.

At the center of the show was the relationship between Richie and Fonzie, the strait-laced kid and the guy with the jacket.