complaint

noun

com·​plaint kəm-ˈplānt 

1

: expression of grief, pain, or dissatisfaction

She did her chores without complaint.

2

a

: something that is the cause or subject of protest or outcry

Inefficiency was the main complaint against the local government.

b

: a bodily ailment or disease

The patient's complaint was frequent headaches.

3

: a formal allegation against a party

The complaint alleges sexual harassment.

Synonyms

• grievance
• whine
• moan
• fuss
• lament
• bitch

Examples of complaint in a Sentence

The board has received a number of complaints about the new policy.

The company has a system to handle customer complaints.

The lack of parking spaces is a common complaint among the city's residents.

The lack of financial support is our biggest complaint.

He is being treated for a stomach complaint.

Shortness of breath was a common complaint among the patients.

Recent Examples on the Web

The Biden administration warned that would lead to a huge backlog of complaints and strain the government’s resources, should thousands of borrowers now have to present their cases in court, and would harm borrowers by forcing them to default on their loans in order to possibly get relief. —Alison Durkee, Forbes.com, 23 June 2025

Officers responded to a burglary complaint about 7:30 a.m. Sunday, when employees at the city’s Parks and Recreation Department told cops someone was stuck in the chimney of a building in Rockwell Park, Bristol Police Lt. Desmond Wilson said. —Theresa Braine, New York Daily News, 23 June 2025

The football union, where internal complaints had already been lodged, then brought on an outside firm, Linklaters, to conduct a review. —Evan Drellich, New York Times, 22 June 2025

After learning of the matter, law enforcement obtained a search warrant for Bohn’s Woodbury home and found an unloaded firearm in a locked case in his garage, according to the complaint. —Alex Derosier, Twin Cities, 21 June 2025

Word History

Etymology

Middle English compleynte, from Anglo-French compleint, from compleindre — see complain

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing complaint

• counter-complaint
• grounds for complaint

Rhymes for complaint

• acquaint
• constraint
• distraint
• enceinte
• repaint
• restraint
• faint
• feint
• maint
• paint
• plaint
• quaint

Kids Definition

complaint

noun

com·​plaint kəm-ˈplānt 

1

: expression of grief, pain, or resentment

2

a

: a cause or reason for complaining

the noise was her biggest complaint

b

: a pain or sickness in the body

3

: a charge of illegal wrongdoing against a person

Medical Definition

complaint

noun

com·​plaint kəm-ˈplānt 

: a bodily ailment or disease

bloating and other digestive complaints

—Christine Gorman

Legal Definition

complaint

noun

com·​plaint

1

: the initial pleading that starts a lawsuit and that sets forth the allegations made by the plaintiff against the defendant and the plaintiff's demand for relief see also prayer, process, well-pleaded complaint rule compare answer

2

: a document sworn to by a victim or police officer that sets forth a criminal violation and that serves as the charging instrument by which charges are filed and judicial proceedings commenced against a defendant in a magistrate's court compare declaration, indictment, information

3

: petition