hardness 音标拼音: [h'ɑrdnəs]
n . 坚硬,困难,严厉,勇气
坚硬,困难,严厉,勇气
hardness n 1 :
the property of being rigid and resistant to pressure ;
not easily scratched ;
measured on Mohs scale [
ant : {
softness }]
2 :
a quality of water that contains dissolved mineral salts that prevent soap from lathering ; "
the costs of reducing hardness depend on the relative amounts of calcium and magnesium compounds that are present "
3 :
devoid of passion or feeling ;
hardheartedness [
synonym :
{
unfeelingness }, {
callousness }, {
callosity }, {
hardness },
{
insensibility }]
4 :
the quality of being difficult to do ; "
he assigned a series of problems of increasing hardness "; "
the ruggedness of his exams caused half the class to fail " [
synonym : {
hardness },
{
ruggedness }]
5 :
excessive sternness ; "
severity of character "; "
the harshness of his punishment was inhuman "; "
the rigors of boot camp "
[
synonym : {
severity }, {
severeness }, {
harshness }, {
rigor },
{
rigour }, {
rigorousness }, {
rigourousness }, {
inclemency },
{
hardness }, {
stiffness }]
Hardness \
Hard "
ness \,
n . [
AS .
heardness .]
1 .
The quality or state of being hard ,
literally or figuratively .
[
1913 Webster ]
The habit of authority also had given his manners some peremptory hardness . --
Sir W .
Scott .
[
1913 Webster ]
2 . (
Min .)
The cohesion of the particles on the surface of a body ,
determined by its capacity to scratch another ,
or be itself scratched ; --
measured among minerals on a scale of which diamond and talc form the extremes .
[
1913 Webster ]
3 . (
Chem .)
The peculiar quality exhibited by water which has mineral salts dissolved in it .
Such water forms an insoluble compound with soap ,
and is hence unfit for washing purposes .
[
1913 Webster ]
Note :
This quality is caused by the presence of calcium carbonate ,
causing temporary hardness which can be removed by boiling ,
or by calcium sulphate ,
causing permanent hardness which can not be so removed ,
but may be improved by the addition of sodium carbonate .
[
1913 Webster ]
158 Moby Thesaurus words for "
hardness ":
Philistinism ,
abstruseness ,
arduousness ,
armor ,
asperity ,
astringency ,
austerity ,
bothersomeness ,
burdensomeness ,
callosity ,
callousness ,
callus ,
closeness ,
cohesiveness ,
coldbloodedness ,
coldheartedness ,
coldness ,
compactness ,
complexity ,
complication ,
congestedness ,
congestion ,
consistence ,
consistency ,
crabbedness ,
crampedness ,
crowdedness ,
cruelty ,
deepness ,
denseness ,
density ,
difficultness ,
difficulty ,
durability ,
esoterica ,
firmness ,
flintiness ,
formidable defenses ,
fundamentalism ,
gluiness ,
grimness ,
hairiness ,
hard heart ,
hard shell ,
hardenedness ,
hardheartedness ,
hardiness ,
hardness of heart ,
hardship ,
harshness ,
heart of stone ,
heartlessness ,
impenetrability ,
impenitence ,
impenitentness ,
impermeability ,
imperviousness ,
impliability ,
imporosity ,
inclemency ,
incompressibility ,
induration ,
inexorability ,
inexorableness ,
inflexibility ,
infrangibility ,
insensitiveness ,
insensitivity ,
insolence ,
intricacy ,
inuredness ,
irrepentance ,
jammedness ,
knottiness ,
laboriousness ,
lastingness ,
leatherlikeness ,
mercilessness ,
nonrepentance ,
obduracy ,
obdurateness ,
obstinacy ,
onerousness ,
oppressiveness ,
orthodoxy ,
pitilessness ,
precisianism ,
profoundness ,
profundity ,
purism ,
puritanism ,
reconditeness ,
relative density ,
relentlessness ,
remorselessness ,
resistance ,
rhinoceros hide ,
rigidity ,
rigidness ,
rigor ,
rigorousness ,
ropiness ,
roughness ,
ruggedness ,
ruthlessness ,
seared conscience ,
severity ,
short shrift ,
solidity ,
solidness ,
soundness ,
specific gravity ,
spissitude ,
stability ,
stamina ,
staunchness ,
sternness ,
stiffness ,
stoniness ,
stoutness ,
strength ,
strenuousness ,
stringency ,
stringiness ,
stubbornness ,
sturdiness ,
temper ,
tenacity ,
tender mercies ,
thick skin ,
thickness ,
toilsomeness ,
toughness ,
troublesomeness ,
unabjectness ,
unbendingness ,
unbreakability ,
unbreakableness ,
uncompassionateness ,
uncompromisingness ,
uncontriteness ,
unfeeling ,
unfeelingness ,
unforgivingness ,
ungentleness ,
unmercifulness ,
unnaturalness ,
unrelentingness ,
unremorsefulness ,
unresponsiveness ,
unsympatheticness ,
unyieldingness ,
vicissitude ,
vigor ,
viscidity ,
viscosity ,
viscousness ,
vitality
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