threateningly

The man glared at her threateningly.

She spoke to him threateningly, warning him to stay away.

The dog growled threateningly at the stranger.

He raised his fist threateningly, ready to defend himself.

The dark clouds loomed threateningly over the city skyline.

The boss stared at the employee threateningly, making him nervous.

The criminal approached the victim threateningly, demanding money.

The politician's speech was filled with threateningly aggressive language.

The thunder rumbled threateningly in the distance.

The teacher glared threateningly at the misbehaving student.