rigidon Academic Word Listalso onCEFR Mastery level (C2)? Academic Vocabulary List (AVL)? 严格的,僵硬的 rigidities rigidities(noun) ?刚性,僵化之物(rigidity的复数),僵硬 rigid rigid(adjective) 严格的,僵硬的 rigidity rigidity(noun) [力] 刚性,严格,僵化,刻板,坚硬,硬度 rigidly rigidly(adverb) 严厉地,严格地,坚硬地,牢牢地 Forms nounadjectiveadverb rigidities rigid rigidly rigidity