1
the stiffness of sth
用 of 引出具体的对象，说明某物的刚性或硬度。
The stiffness of the cardboard made it hard to fold.
这种纸板的硬度使它很难折叠。
僵硬；刚性；刚度
stiffnesses — plural of stiffness
先理解核心含义，再看它在真实句子里的用法。
僵硬；刚性；刚度
the physical property of being inflexible and hard to bend
The stiffness of the cardboard made it hard to fold.
这种纸板的硬度使它很难折叠。
这里指物体难以弯曲的物理性质，不是指态度呆板。
僵硬或僵硬程度。
Rigidity or a measure of rigidity.
不易弯曲且坚硬的物理特性
the physical property of being inflexible and hard to bend
不灵活或不灵活程度。
Inflexibility or a measure of inflexibility.
活动时伴有疼痛或困难的状态
the property of moving with pain or difficulty
The stiffness of the plastic sheet made it difficult to roll up.
塑料板的僵硬使它难以卷起来。
AI contextual example
You can reduce the stiffness of the leather by rubbing it with oil.
你可以通过用油擦拭来减少皮革的僵硬。
AI contextual example
The stiffness in his shoulders disappeared after the massage.
按摩后，他肩膀的僵硬消失了。
AI contextual example
he awoke with a painful stiffness in his neck
他醒来时脖子僵硬,疼得厉害。
WordNet
用 of 引出具体的对象，说明某物的刚性或硬度。
The stiffness of the cardboard made it hard to fold.
这种纸板的硬度使它很难折叠。
表示身体某部位的僵硬时，stiffness 后接介词 in。
Morning stiffness in the knees is common in older adults.
老年人早晨膝盖僵硬很常见。
stiffness 常与 relieve、ease、reduce 等动词搭配，表示减轻僵硬。
A warm bath can help ease the stiffness after exercise.
运动后洗个热水澡有助于缓解僵硬。
Not this
The cardboard is stiffness and hard to bend.
Use this
The cardboard is stiff and hard to bend.
be 动词后应接形容词 stiff 描述材料性质；stiffness 是名词，不能作表语。改为 stiff 后更自然。
Not this
He felt stiffness on his shoulder after exercising.
Use this
He felt stiffness in his shoulder after exercising.
表示身体部位僵硬时，英语用介词 in 表示‘在……部位’；on 多指表面，不符合英语表达习惯。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
肌肉僵硬
Regular stretching can help prevent muscle stiffness.
经常拉伸有助于预防肌肉僵硬。
关节僵硬
Older people often complain of joint stiffness in the morning.
老年人常说早晨关节僵硬。
晨僵
Morning stiffness is a common symptom of arthritis.
晨僵是关节炎的常见症状。
颈部僵硬
Neck stiffness can be a sign of meningitis.
颈部僵硬可能是脑膜炎的征兆。
减轻僵硬
Warm compresses can reduce stiffness in the affected area.
热敷可以减轻患处的僵硬。
Use stiffnesses naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
stiff（僵硬）+ ness（名词后缀）：想象一根被冻住的木棍，怎么掰都弯不了，就是 stiffness 僵硬。
语域：mixed 常见场景：医学、工程、日常身体感受 该词为中性词，通常多用于医学和工程领域的说明性语境，如关节僵硬或材料刚度；日常描述身体僵硬或物体不易弯曲时也比较常见，但整体略偏书面。
None of these words is a perfect rhyme for stiffness. Thickness, sickness, fitness, and witness all have the same /ˈ...nəs/ rhythm and a stressed /ɪ/, but their consonant clusters before /nəs/ differ (k, k, t, t) from the /f/ in stiffness. Briskness is similar in form but uses /sknəs/. Stifle is a spelling lookalike but sounds completely different: /ˈstaɪfəl/.
Dictionary facts from ECDICT, WIKTIONARY.