The term "was extravagant" can be replaced with various synonyms depending on the context. Some synonyms for this phrase include 'overindulgent,' 'lavish,' 'excessive,' 'spendthrift,' 'ostentatious,' and 'splurge.' These terms indicate a state of excessiveness or wastefulness in using money or resources. Other possible synonyms include 'profligate,' 'lush,' 'prodigal,' and 'reckless.' Each word highlights a different aspect of extravagance- whether it's the lack of control in one's spending habits or the showy nature of one's use of resources. Regardless of the specific word chosen, they convey a sense of over-the-top indulgence or extravagance in one's behavior.