What does slacker mean?
A slacker is someone who avoids doing their share of work or responsibility, or who is broadly regarded as lazy and unproductive. The word is especially common in informal workplace, school, and social contexts, where it can express irritation or moral criticism: calling a colleague a slacker suggests not merely that the person is inefficient, but that they are deliberately avoiding effort that others must carry. In conversation, the term may also be used more lightly or humorously, sometimes to describe someone who takes it easy rather than someone who is genuinely irresponsible. It is related in meaning to shirker, idler, and loafer, while slack refers to reduced tension or activity rather than to a person. Because the word carries a negative and sometimes dismissive connotation, it is best used when the speaker intends to judge or criticize someone's behavior rather than neutrally describe a work style.
nounA slacker is someone who avoids or does the minimum amount of work or effort required, especially when others are expected to contribute. The term is often informal and may imply laziness or a lack of responsibility.
- A person who avoids or minimizes work, effort, or responsibility.
- A person regarded as generally lazy or unproductive.
"Her manager considered him a slacker because he rarely finished his assignments on time."
"The team was delayed by a slacker who would not share the workload."
"He was no slacker: even during the busiest weeks, he kept the project on schedule."
The usual plural when referring to multiple people who avoid work or responsibility.
"The supervisor told the slackers to contribute more to the project."
Calling someone a slacker turns the idea of slack—reduced tension or effort—into a sharp judgment about a person's character.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does slacker come from?
The word is formed from the adjective slack, meaning loose, not tight, and the suffix -er, traditionally indicating a person who performs an action or has a quality. In this formation, it came to mean a person who is slack or insufficiently diligent. The adjective slack itself is an old English word, related to other Germanic forms meaning loose or lax, and it later extended in usage to describe reduced effort or activity.
Related word forms
How slacker is actually used
Informal and generally disparaging; it can be playful among friends but is often insulting when used seriously.
Easily confused with slacker
Slack means the absence of tension, activity, or effort, whereas a slacker is a person who avoids doing their share of work or responsibility.