The concept of taking vows is associated with commitment, loyalty, and dedication towards a particular cause, person, or institution. Antonyms for this phrase could include words like break promises, betray, renounce, revoke, and retract. These words imply a lack of commitment and faithfulness towards the promises or oaths that were taken previously. It is important to consider the weight of the vows taken, as sometimes breaking them could lead to severe consequences. The antonyms for the phrase "takes vows" should be used in appropriate contexts and with caution, as they can imply negative connotations and may be disrespectful to those who have taken their commitments seriously.