inured (adj.)

• accustomed
• adapted
• adjusted
• brazen
• callous
• calloused
• case-hardened
• conditioned
• conscienceless
• experienced
• familiarized
• flinty
• hard
• hardened
• hardhearted
• heartless
• impervious
• insensitive
• naturalized
• obdurate
• orientated
• oriented
• pachydermatous
• seared
• seasoned
• shameless
• steely
• stony
• thick-skinned
• trained
• unblushing
• wonted