Definition Synonyms
Definition of hardness - Reverso English Dictionary
Noun
1.
material strengthquality of being hard or firm
- The hardness of the diamond is unmatched.
2.
workdifficulty or challenge in a task
- The hardness of the exam surprised everyone.
3.
material scienceTECH. resistance to scratching or cuttingTECH.
- Steel's hardness makes it ideal for tools.
4.
emotional qualitysternness or lack of emotion
- His hardness made him a feared leader.
5.
water qualityTECH. measure of calcium in waterTECH.
- The water's hardness affects soap lathering.
6.
beam shieldingTECH. penetrating ability of radiationTECH.
- The x-ray's hardness determines its penetration depth.
Expressions with hardness
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method that measures how strongly a solid resists scratches or dents
The engineer performed a hardness test on the steel sample.
hardness in water removable by boiling
Temporary hardness can be removed by boiling the water.
measure of dissolved calcium and magnesium in water
The water hardness affects how soap lathers.
level of resistance a solid has to scratching or permanent marking
The degree of hardness of the alloy determines how easily it can be machined.
hardness in water that cannot be removed by boiling
The permanent hardness of the water made it difficult to wash clothes.
measure of material's resistance to indentation
The Vickers hardness of the steel was tested to ensure its durability..
stubborn refusal to change one's mind
Her hardness of heart prevented any reconciliation.
partial or total difficulty hearing sounds clearly
He has hardness of hearing in his left ear.
Origin of hardness
Old English, heard (hard) + -ness (state)
Terms with hardness included in their meaning
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physical
lose firmness or hardness
writing grade
pencil with hardness level 2
texture
lack of physical hardness or firmness in texture
hardness
extreme hardness or resilience
texture appearance
similar in texture, appearance, or hardness to cement
like flint
resembling flint in appearance or hardness
appliance
device that reduces hardness of water
water treatment
device reducing water hardness using ion exchange
chemistry
substance that reduces water hardness by absorbing ions
coating
coat a surface using wet mineral paste for hardness
metal property
the hardness or elasticity of metal
rubber
treated to improve properties like hardness
metallurgy
process of heating and cooling metals to reduce hardness
geology
scale for expressing hardness of solids from 1 to 10
material
method to test material hardness by scratching
rubber
treated to improve hardness and elasticity
mineral removal
process of removing minerals from water that cause hardness
mythical rock
imaginary rock of impenetrable hardness
material
steel heat-treated to balance hardness and toughness for strong durable parts
hardness
unbreakable or extremely hard
metallurgy
process of increasing the hardness and strength of an alloy by aging
hardness
extremely hard or solid like a bone
hardness
hard and rigid like bone
insensitivity
lack of sensitivity or emotional hardness
Examples of hardness in a sentence
Testing the hardness of the rock was essential. We underestimated the hardness of repairing the roof. Her training prepared her for the hardness of the job. The hardness of the diamond is unmatched. Engineers tested the hardness of the new alloy. Her hardness in negotiations was unmatched.
The teacher's hardness intimidated the students. High water hardness can damage appliances. Testing revealed the hardness level was above average. The hardness of gamma rays is significant. Researchers measured the hardness of the beam.
View all translations of hardness
Click below to see the appropriate translations facing each meaning.
- French:dureté, difficulté, ...
- German:Härte, die Schwierigkeit, ...
- Italian:durezza, difficoltà, ...
- Spanish:dureza, dificultad, ...
- Portuguese:dureza, dificuldade, ...
- Chinese:硬度, 难度, ...
- Japanese:硬さ, 難しさ, ...
- Arabic:صَلَابَة, صُعوبَة, ...
- Hebrew:קְשִׁיחוּת, קוֹשִׁי, ...
- Russian:твердость, сложность, ...
- Ukrainian:твердість, складність, ...
- Hindi:कठोरता, कठिनाई, ...
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