She diffidently raised her hand to ask a question, afraid of interrupting the discussion.

Her diffidencies toward the proposal became apparent during the meeting, even though she kept her objections to herself.

His diffidency made him decline the invitation, though he secretly longed to attend.

Her diffidentness made it difficult for her to speak up during meetings, even when she had valuable ideas.

She remained diffident of the committee's promises, fearing they would not follow through.

Her diffidence made it difficult for her to introduce herself at the conference, even though she had valuable ideas to share.

Her diffidences were evident when she refrained from sharing her innovative proposal during the team meeting.

Despite her companion’s gentle tone, she could not help but diffide his motives.