The antonyms for the term 'most money conscious' can include a wide range of words like careless, extravagant, indulgent, spendthrift, prodigal, lavish, and so on. Being the opposite of being money conscious, being careless refers to not being careful with one's money and reckless with expenses. Extravagant refers to a person who splurges unnecessarily, whereas being indulgent means not being able to resist the temptation of spending money on things that are not essential. Being a spendthrift means spending money recklessly and without any thought. Lastly, prodigal and lavish refer to people who spend excessively and carelessly, without any regard for money management.