jlptsensei.com/learn-japanese-grammar/%E5%88%A5%E3%81%AB%EF%BD%9E%E3%81%AA%E3%81%84-betsu-ni-nai-meaning/
Detailed grammar lesson on the JLPT N3 pattern 別に~ない (betsu ni~nai) meaning "not really" or "not particularly".
GrammarJLPT and other testsJLPT N3Example sentencesSpaced repetitionJLPTTranslation