synonyms is the answer
synonyms are "a word or phrase that means exactly or nearly the same as another word or phrase in the same language, for example shut is a synonym of close" and i'm assuming sympathetic and nice are the underlined words since that's what i had, and they nearly have the same meaning. sympathetic means, "feeling, showing, or expressing sympathy." or "(of a person) attracting the liking of others." and nice means, "pleasant; agreeable; satisfactory." or "fine or subtle."
plus, homonyms are "each of two or more words having the same spelling or pronunciation but different meanings and origins." and nice and sympathetic do not have the same spelling or pronounciation. meanwhile, antonyms are, "a word opposite in meaning to another (example: bad and good )."
my apologies if i'm wrong and made myself look like and idiot <3
