The zealous volunteer organized the community cleanup with boundless energy.

Her over-zealous attempts to help often ended up causing more problems than they solved.

The zealous witnesses arrived early to make sure nothing went unnoticed at the hearing.

The judge cautioned the jury that a zealous witness whose testimony clearly favored one side might compromise the integrity of the trial.

The committee was surprised by the volunteers' zealousnesses, which ranged from late-night campaigning to daily outreach efforts.

Her zealousness for environmental conservation inspired the whole community to act.

She defended the project zealously during the board meeting, refusing to concede any point.

His zealousy turned small flirtations into full-blown arguments.