Having a hand in refers to being involved in or contributing to a particular activity or decision. Antonyms for having a hand in include being disconnected, disengaged, uninvolved, detached, or uninfluential in a particular action or decision. Someone who is disconnected is not part of the project or is not relevant, while being disengaged means lacking interest or an emotional connection to the task at hand. Being uninvolved or detached means being unwilling or unable to contribute to a specific action or decision. Lastly, someone who is uninfluential lacks the power or authority to make a difference in the outcome of the situation.