What does uncooperative mean?
“Uncooperative” describes someone or something that does not assist, participate willingly, or work effectively with others. The word is especially common for people or groups that resist requests, refuse to provide needed information, or deliberately hinder an agreed process. It can also be used more loosely of equipment, systems, or circumstances that prevent smooth progress, although such uses may sound less formal. The negative prefix “un-” makes the meaning clear: a cooperative person works willingly with others, whereas an uncooperative one does not. In formal reporting, the term conveys disapproval and often suggests intentional obstruction rather than simple inability. The phrase “an uncooperative witness” is particularly familiar from legal and news contexts, while “uncooperative attitude” describes a general reluctance or hostility to cooperation. Although it is sometimes used loosely alongside “uncoordinated,” the words are not equivalent: “uncoordinated” means poorly organized or lacking synchronization, not necessarily resistant to working with others. The word is most useful when describing persistent and deliberate resistance to assistance, agreement, or joint action.
adjectiveUnwilling or unwilling and obstructive to helping, assisting, or working with others. It often implies deliberate resistance to cooperation.
- Unwilling or deliberately obstructive toward helping, assisting, or working with others.
"The witness remained uncooperative and refused to answer questions."
"The witness remained uncooperative and refused to answer questions."
"Negotiators abandoned the talks after the delegation adopted an uncooperative stance."
Add one little prefix, un-, and “working together” turns into a standoff.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does uncooperative come from?
The adjective was formed in the 19th century by adding the negative prefix un- to cooperative. Cooperative had entered English through Medieval Latin from Latin cooperare, “to work together,” built from co-, meaning “together,” and operari, meaning “to work”; operation and operate descend from the same Latin verb. Uncooperative therefore reverses the original idea of cooperation by combining a negative prefix with a word denoting joint work.
Related word forms
How uncooperative is actually used
The term is usually negative and commonly describes a person, group, or organization that resists assistance, agreement, or joint action. It is also sometimes applied loosely to equipment, systems, or circumstances that hinder progress. In formal contexts, it can suggest intentional obstruction rather than mere inability to cooperate.
Easily confused with uncooperative
Uncooperative means resistant or unwilling to work with others, whereas uncoordinated means poorly organized or lacking effective synchronization.