Synonyms of harden
1 solidifyDictionary • Mould the mixture into shape before it hardens.
solidify • The thicker lava would have taken two weeks to solidify.
set • Lower the heat and allow the omelette to set on the bottom.
freeze • The ground froze solid.
cake • The blood had begun to cake and turn brown.
clot • The patient's blood refused to clot.
thicken • Keep stirring until the sauce thickens.
stiffen • The fine-tuning lens in the eye stiffens with age.
crystallize • Keep stirring the mixture or the sugar will crystallize.
congeal • The blood had started to congeal.
coagulate • The blood coagulates to stop wounds bleeding.
2 accustomDictionary • hardened by the rigours of the Siberian steppes
accustom • He accustoms us to a mixture of humour and tragedy in one play.
season • Both actors seem to have been seasoned by experience.
toughen • people who have been toughened by their daily circumstances
brutalize • He was selfish, guarded, brutalized by his Civil War experiences.
habituate • The researchers first habituated each baby to their surroundings.
3 reinforceDictionary • Their action can only serve to harden the attitude of landowners.
reinforce • They had to reinforce the walls with exterior beams.
strengthen • The builders will have to strengthen the existing joists with additional timber.
fortify • British soldiers working to fortify an airbase
brace • The lights showed the old timbers, used to brace the roof.
toughen • laminated and toughened glass
buttress • His tough line is buttressed by a democratic mandate.
gird • They are girding themselves for battle against a new enemy.
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accustomIf you accustom yourself or another person to something, you make yourself or them become used to it.
• He accustoms us to a mixture of humour and tragedy in one play.
annealto temper or toughen (something) by heat treatment
braceTo brace something means to strengthen or support it with something else.
• The lights showed the old timbers, used to brace the roof.
Thesaurus for harden from the Collins English Thesaurus
to make or become hard or harder; freeze, stiffen, or set