Member of the "cavil-ry"?

Usage examples of complainer.

The big one, the complainer, was the first up the rope, but the others followed closely, not waiting for him to get more than a quarter of the way up before following.

He saw a few bits of armor and what might either be tree trunks or goblin torsos, but the patrol, big complainer and all, was gone.

It was a choice between the complainer quitting and Number Two being placed in a different office.

The described symptoms had been vague and diverse, so that no consistent pattern had developed, and no complainer had actually reported for a University re-check.

These are the matters the murmurers and complainers talk of so impudently and contentiously, but the real cause lies deeper.

Briony had been horrified and fascinated to learn that overseeing this wretched parade of denianders and complainers was the sort of thing Nynor had been doing every day of his long career, or at least through the several decades since he had become one of her grandfather Ustin’s chief courtiers.

They are all chronic complainers about their lot in the world and they have decided to go with who they perceive as an irresistible force.

It also meant that complainers, chronic troublemakers, and potential enemies could be executed with a clear conscience, since they'd be reborn anyway.

Doubters and waverers, dodgers and complainers, the lazy and the shiftless were as much traitors to the cause as any spy or saboteur.