unprompted

She made an unprompted confession about her feelings.

His unprompted apology took me by surprise.

The child offered an unprompted hug to his friend.

The employee gave an unprompted presentation on the new project.

She received unprompted praise for her hard work.

The dog gave an unprompted bark at the stranger.

He offered an unprompted solution to the problem.

The student's unprompted question sparked a lively discussion.

The cat's unprompted affection towards its owner was heartwarming.

His unprompted kindness towards strangers is commendable.