"More contributed" is a positive phrase that indicates an increase in participation or involvement. Antonyms for "more contributed" can be words that show a decrease or absence of input, such as "less contributed," "withheld," "retracted," or "neglected." These terms may suggest a lack of interest, motivation, or willingness to contribute to a cause, project, or discussion. Alternatively, antonyms for "more contributed" can also be words that express opposition, resistance or disagreement, such as "opposed," "defied," "censored," or "obstructed." These words can imply that someone is actively hindering rather than helping the progress of a certain activity or task.