some of these questions' correct answers have a very casual relationship to 'synonym' or 'antonym'. and they twist tense from the question to the available answers

e.g. : aggrieved's antonym being 'buoyant' isn't just using a very nonstandard definition it's just the etymology. technically correct but nobody writes this way, borderline metaphorical

this does mean i looked up 4 questions & my final score is corrupted but i needed to make sure i wasn't just an idiot, no, these questions are just very liberal with the way words relate to one another. tbh a more straightforward test would be just 'define the word'