Antonyms for the word "co-operatively" include: uncooperatively, conflictually, competitively, individually, and independently. Uncooperatively refers to a lack of cooperation or unwillingness to work together. Conflictually denotes a state of conflict, opposition, or disagreement amongst the parties involved. Competitive suggests a focus on personal achievement or success rather than collective effort. Individually implies working or acting alone without the support or involvement of others. Independently refers to working in isolation or without coordination with others. Each of these antonyms highlights the opposite of co-operation, emphasizing the absence or negation of working together towards a common goal.