Answer:
extravagant - wasteful
stubborn - headstrong
heartless - unmerciful
angry - irate
The following synonyms are correctly matched as extravagant - wasteful, stubborn - headstrong, heartless - unmerciful, and angry - irate.
Synonyms are words with similar meanings. They are used to replace the single word used many times in a sentence. These words have nearly the same meaning as the word it represents.
Extravagant is a word that shows spending resources without a constraint and hence pairs with the word wasteful. Similarly stubborn indicates a strong-willed person and pairs with the word headstrong.
Heartless is a word used to describe a person who lacks consideration and paired with the word unmerciful. Similarly, the word angry means to be annoyed because of a person or situation and hence pairs with the word irate.
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