1
substandard + noun
The company sold substandard products.
这家公司出售了不合格的产品。
低于标准的；不合格的；质量不达标的
先理解核心含义，再看它在真实句子里的用法。
低于标准的；不合格的；质量不达标的
below the required standard; of inferior quality
The company sold substandard products.
这家公司出售了不合格的产品。
质量低劣的；未达到最低质量要求的。
Of inferior quality; not meeting the minimum quality requirements.
未达到规定标准的
falling short of some prescribed norm
The hospital had to close after inspectors found substandard medical equipment.
检查人员发现医疗设备不合格后，这家医院不得不关闭。
AI contextual example
Many residents complained that the new apartments were built with substandard materials.
许多居民抱怨说，新公寓是用不合格的材料建成的。
AI contextual example
The teacher told us that our work was substandard and asked us to do it again.
老师告诉我们作业不合格，让我们重做。
AI contextual example
substandard housing
不合格住房。
WordNet
The company sold substandard products.
这家公司出售了不合格的产品。
The workmanship was substandard.
工艺水平低于标准。
Not this
The product quality is below standard.
Use this
The product quality is substandard.
中文学习者常受中文表达‘低于标准’影响，使用短语‘below standard’，但英语中常用形容词‘substandard’直接表示‘不合格的’。
Not this
The material is unstandard.
Use this
The material is substandard.
学习者可能误用前缀‘un-’构成反义词，但英语中不存在‘unstandard’一词，正确形容词为‘substandard’。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
不达标的住房
Many families in the region live in substandard housing.
该地区许多家庭住在不达标的住房里。
不合格商品
The inspector found a batch of substandard goods in the warehouse.
检查员在仓库里发现了一批不合格商品。
不合格材料
The contractor used substandard materials to cut costs.
承包商使用不合格材料来降低成本。
不合格的工程
The builder was criticized for substandard work on the bridge.
这名建筑商因桥梁工程不合格而受到批评。
不达标的状况
The workers complained about substandard conditions in the factory.
工人们抱怨工厂里的条件不达标。
不合格的教育
Children in rural areas often receive substandard education.
农村地区的儿童往往接受不到合格的教育。
Use substandard naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
sub（低于）+ standard（标准）→ 想象一件产品被贴上“低于标准”的标签，质量不合格。
语域：formal 常见场景：quality inspection reports、regulatory and official documents substandard 多用于正式或专业书面语（如质检报告、法规或新闻），指未达到最低标准；日常口语中更常说 below standard 或 not up to standard。
Rhymes with 'standard' and 'nonstandard', whose stressed syllable is also /ˈstændɚd/. 'Understand' is a useful spelling lookalike but is pronounced /ˌʌndərˈstænd/ (no final /ɚd/), so it does not rhyme. 'Hazard' also ends in -ard and has the /ɚd/ ending, but its stressed vowel is /æ/ before /z/, not /ænd/, so it only shares the ending, not a rhyme.
Dictionary facts from ECDICT, WIKTIONARY.