non-cooperation - a) failure to work together or in unison with a person, group or organization; b) refusal to work together owing to personal disliking, jealousy, intolerance, etc.; c) refusal to cooperate with a government through various acts of civil disobedience, as by non-payment of taxes: used as a form of protest, as by Mahatma Gandhi against the former British government in India.

not co-operating; non-cooperative; tending to differ from another's opinion, work, purpose.

one who is non-cooperative; non-cooperator; non-cooperationist.