noncooperative

Not working together

Noncooperative describes a refusal or failure to work together with others toward a shared goal.

A noncooperative witness declines to answer questions or provide useful information.

In game theory, noncooperative games are those where players act independently rather than forming binding agreements—each pursues their own interest without coordinating strategies.

The term often carries negative connotations, suggesting obstruction or unhelpfulness: The suspect remained noncooperative throughout the interrogation.

adversarial

hostile

Aggressively unfriendly

contentious · confrontational · conflicting · competing · rivalrous · zero-sum · cutthroat · dog-eat-dog · winner-take-all · competitive

obstinate

stubborn

Refusing to change course

obdurate · headstrong · bullheaded · mulish · pigheaded · stiff-necked · unbending · adamant · immovable · dogged

defiant

rebellious

Resisting authority or control

contumacious · mutinous · resistant · dissenting · noncompliant · willful · refractory · contrary · intractable · balky

independent

unilateral

Affecting one side only

free agent · lone wolf · going alone · separatist · nonparticipating · opting out · abstaining · uninvolved · detached · nonaligned

unhelpful

unresponsive

Failing to react or reply

stonewalling · evasive · tight-lipped · withholding · difficult · hindering · impeding · blocking · thwarting · foot-dragging

Opposites
willingness to work together

noncooperativecooperative

Jointly operated enterprise

collaborative · working together · collegial · coordinated · synergistic

compliance and helpfulness

noncooperativecooperative

Jointly operated enterprise

compliant · helpful · accommodating · obliging · amenable

Family

noncooperation

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Negative · Everyday, not technical · Rated G