The phrase "is unwilling" refers to a lack of desire or willingness to do something. Synonyms of this phrase include "unwillingness," "reluctance," "disinclination," "hesitancy," "resistance," and "opposition." Other related words to consider are "refusal," "aversion," "dissent," and "noncompliance." When faced with situations where one is unwilling to comply, it may be useful to employ phrases like "not inclined to," "lacking motivation," or "showing no interest." Overall, these words and phrases highlight a lack of enthusiasm or cooperation and can help to better describe the attitude or behavior of an individual who is unwilling to do something.