The phrase "both oars in water" refers to someone who is focused and fully engaged in a task or project. Antonyms for this phrase could include being distracted or unfocused, only partially invested in the work, or not committed to the task at hand. Words like "uninterested," "unengaged," "disengaged," or "distracted" all suggest a lack of attention and focus. Additionally, "half-hearted," "inattentive," and "indifferent" convey the idea that someone is not fully invested in the task or project. When someone has "both oars in water," they are fully committed, so antonyms for this phrase indicate a lack of investment, attention, or commitment.