equipoised

Equipoised describes a state of perfect balance or equilibrium, whether physical or figurative.

Something equipoised is evenly weighted, stable, and not tipping toward any particular direction.

The word often applies to mental or emotional states—a person who remains equipoised under pressure maintains composure and doesn't overreact.

She remained equipoised despite the chaos around her.

It can also describe objects or forces in physical balance: The scale was perfectly equipoised.