Her indefatigable curiosity drove her to explore every corner of the ancient library.

Her indefatigableness in organizing the relief efforts kept supplies flowing to the affected villages.

Her indefatigation impressed everyone at the expedition, pushing the team onward through storms and fatigue.

Her indefatigability during the relief efforts inspired volunteers from every corner of the country.

Their indefatigabilities during the rescue operation saved lives and lifted the morale of the entire team.

She worked indefatigably to complete the research before the deadline.