What does slacking mean?
Slacking means failing to work diligently, exert the expected effort, or meet one's responsibilities. It is commonly used as an accusation: an employer may warn employees about slacking, while friends or colleagues may complain that someone is slacking rather than contributing fully. The word often carries a negative and mildly disapproving tone, suggesting laziness, neglect of duty, or deliberate underperformance. In a less common sense, slacking can refer to loosening or reducing something, as in the slacking of a rule or restriction. Although its everyday sense is informal, the word can also appear in formal workplace policies and institutional contexts where reduced effort or neglect of duty is being addressed. Slacking is especially useful because it identifies not merely a lack of activity, but a failure to meet an expected standard of effort or responsibility.
Failure to work diligently or fulfil one's responsibilities.
"There was no excuse for slacking when the deadline was approaching."
Usually informal and disapproving; often used for deliberate underperformance.
The act of loosening, relaxing, or reducing something.
"The announcement led to the slacking of security restrictions."
This sense is less common than the sense of neglecting one's duties.
The plural is rare and usually occurs when referring to separate instances of neglecting one's duties.
"The supervisor reported repeated slackings by members of the team."
Slacking turns a simple adjective into a charge: calling someone a slacker is an accusation, while slack usually describes the work itself.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does slacking come from?
The word is formed from the adjective slack, meaning loose, insufficient, or not working properly, together with the suffix -ing. Slack developed in Middle English from a Germanic root associated with looseness and was reinforced by Dutch slack, meaning loose or slack. The modern sense of failing to exert proper effort developed from the broader idea of being insufficient or lax in one's work.
Related word forms
How slacking is actually used
In its common sense, slacking is informal and usually implies that a person is deliberately doing less than they should. It is more accusatory than neutral descriptions such as reduced activity.
Easily confused with slacking
As a noun, slacking refers to the behaviour of neglecting one's work or duties; as a present participle, it may describe the act of loosening or reducing something.