Meanings of more unguarded in English

The laughter was more unguarded, even strident, the music brassier.

She was afraid that his shrewd, persistent questioning and persuasion might end in eliciting from her more unguarded admissions.

What made their position still more unguarded and dangerous was the absence of their fathers, husbands, and brothers, as volunteers in the armies.

For one thing, as someone no longer running for any offices, it's a slightly more unguarded version of Clinton than we're used to seeing.