Select the most appropriate synonym of the underlined word in the given sentence.

Try to be frugal with your hard-earned money.

Economical

The most appropriate synonym of the underlined word frugal in the given sentence is economical.

• Frugal means careful in the use of one's money or resources.
• Economical means spending or using money or resources carefully and efficiently.

The two words are similar in that they both suggest the idea of being careful in the use of money or resources. However, the word frugal has a more specific meaning that is focused on being careful to avoid waste, while the word economical has a more general meaning that is focused on being efficient in the use of resources.

In the sentence "Try to be frugal with your hard-earned money," the speaker is not just saying that you should be careful in the use of your money, but that you should be efficient in the use of your money and avoid waste. Therefore, the word "economical" is the most appropriate synonym for the word "frugal" in this context.

The other words on the list are not as appropriate synonyms for frugal. The word imprudent means careless or reckless in the use of one's money or resources. The word negligent means careless or not paying attention to what one is doing. The word honest means fair and truthful. These words do not convey the same sense of being careful in the use of money or resources as the word frugal.