informalon Upper intermediatealso onBasic words (BNC)? CEFR Advanced (C1)? Academic Vocabulary List (AVL)? Band 3 (BND3)? 不拘礼节的,非正式的 informal informal(adjective) 不拘礼节的,非正式的 informally informally(adverb) 不拘礼节地,非正式地 informality informality(noun) 不拘礼节,非正式 Forms adjectiveadverbnoun informal informally informality