The phrase "is loath" means to be unwilling or reluctant to do something. There are several synonyms that can be used in place of "is loath" to convey a similar sentiment. These include "disinclined," "averse," "resistant," "unwilling," "reluctant," and "disinclined." Each of these words can be used in different contexts to express a person's lack of enthusiasm or unwillingness. For example, one might say "I am disinclined to attend the meeting," or "I am averse to trying new foods." Finding the right synonym for "is loath" can help to add nuance and precision to your communication.