harden up
To become stronger or less sensitive — in your body or your feelings.
Meanings
To become or make emotionally stronger, less sensitive to difficulty or criticism.
"You'll need to harden up if you want to survive in such a competitive industry."
To become physically harder or more solid (of a substance).
"Leave the epoxy to harden up for at least two hours before sanding."
To make a position, policy, or attitude more firm, strict, or uncompromising.
"Public opinion hardened up against further tax increases after the scandal."
Used both literally (a material becoming harder) and figuratively (a person becoming emotionally tougher). The figurative sense is common in Australian and New Zealand informal English. Can be used as a command.
Commonly used with
Forms
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