the appropriateness of sth
The committee questioned the appropriateness of the decision.
委员会质疑这一决定的适当性。
适合；适宜；合适程度
适当；得体；恰当；适当性；适当的状态；适当；适合
the quality of being suitable for a particular situation or purpose
多用于判断某事物是否合适
适当性；适当的状态
The quality or condition of being appropriate.
The committee questioned the appropriateness of his comments during the formal ceremony.
委员会质疑他在正式典礼上发言的恰当性。
用法提示：此处 appropriateness 为名词，表示“恰当性、得体性”。
Please check the appropriateness of this dress for a job interview.
请检查这件连衣裙是否适合求职面试。
用法提示：此处 appropriateness 为名词，指“适合性、合适程度”。
She doubted the appropriateness of using humor in a serious meeting.
她怀疑在严肃会议中运用幽默是否恰当。
用法提示：此处 appropriateness 为名词，意为“适当性”。
The committee questioned the appropriateness of the decision.
委员会质疑这一决定的适当性。
注意此结构后接动名词，表示“做某事的合适性”。
She questioned the appropriateness of wearing casual clothes to the interview.
她质疑穿休闲装去面试是否合适。
appropriateness 常与表示评价、判断的动词搭配，如 assess、judge、question。
It is important to assess the appropriateness of the treatment for each patient.
重要的是评估该疗法对每位患者是否合适。
与 appropriateness 最接近，通用；侧重是否符合具体要求或情境，多数语境可互换。
侧重是否适合某种用途或资格，如 fitness for the job；比 appropriateness 更具体、常用。
侧重自然贴切，常指言辞或描述恰当，不如 appropriateness 正式。
强调社会规范或礼节上的得体，语气较正式，主要形容行为举止。
grammar · medium
易错句子It is appropriateness to wear formal clothes to the interview.
正确表达It is appropriate to wear formal clothes to the interview.
在“It is + 形容词 + to do”句型中，表语需要用形容词，而 appropriateness 是名词，表示“适当性”，不能直接作表语，应改为形容词 appropriate。
grammar · medium
易错句子We discussed the appropriateness to wear casual clothes at work.
正确表达We discussed the appropriateness of wearing casual clothes at work.
名词 appropriateness 后接“of + 动名词”表示“…的适当性”，不接带 to 的不定式；虽然形容词 appropriate 后可接 to do，但名词的搭配不同，需改为 of wearing。
与appropriateness构成直接反义，指不符合特定场合或要求。
强调缺乏匹配性，不能适应特定用途或条件。
特指违反社会规范或礼仪，侧重行为、言语上的不恰当。
appropriateness 是名词，指“适当、得体”的性质；appropriate 是形容词，意为“合适的”，只能作定语或表语，不能直接作宾语。
appropriateness 强调言行符合场合或社会规范；suitability 强调满足特定目的或条件。指人是否符合岗位、材料是否适合用途时，用 suitability。
propriety 侧重“合礼节、合道德”，比 appropriateness 正式，常用于形容行为举止是否得体；appropriateness 更宽泛，可指任何事物是否恰当。
某事的适当性
The appropriateness of the decision was widely debated.
这一决定的适当性引起了广泛讨论。
评估适当性
Teachers should assess the appropriateness of the material for their students.
教师应评估教材对学生是否合适。
文化适宜性
The program was criticized for its lack of cultural appropriateness.
该节目因缺乏文化适宜性而受到批评。
社交得体性
Children learn social appropriateness through play.
孩子们通过游戏学习社交得体性。
年龄适宜性
The movie is rated PG-13 for age appropriateness.
这部电影被评为PG-13级，以考虑年龄适宜性。
质疑适当性
Several members questioned the appropriateness of the new policy.
几位成员质疑新政策的适当性。
ap- (to) + propri (own/proper) + -ate (adjective suffix) + -ness (noun suffix); related words: proper, property, appropriate, inappropriate, impropriety
合适性往往取决于其所处的具体语境。
礼仪规范决定了社交场合中的言行是否得体。
社会或群体规范是判断适当与否的重要依据。
判断合适与否需要个人对情境的敏感和理性评估。
约定俗成的惯例影响着什么行为被认为是恰当的。
Dictionary facts from ECDICT, WIKTIONARY.