toughened

Strongest matches

• apathetic
• careless
• cold-blooded
• heartless
• indifferent
• insensitive
• uncaring
• unsympathetic

Strong matches

• hardened
• indurated
• inured
• unbending

Weak matches

• blind to
• case-hardened
• cold
• deaf to
• hard
• hard-bitten
• hard-boiled
• hardhearted
• impassive
• impenitent
• inflexible
• insensate
• insensible
• insentient
• obdurate
• soulless
• spiritless
• stiff
• stony
• stubborn
• thick-skinned
• torpid
• tough
• unaffected
• uncompassionate
• unconcerned
• unfeeling
• unimpressionable
• unresponsive
• unsusceptible

Strongest matches

• coldhearted
• seasoned

Strong matches

• accustomed
• benumbed
• callous
• habituated
• indurated
• inured
• prepared
• steeled
• unbending

Weak matches

• case-hardened
• contemptuous
• cruel
• disdainful
• hard as nails
• hard-bitten
• hard-boiled
• hardhearted
• heartless
• impenetrable
• impious
• inaccessible
• irreverent
• obdurate
• obtuse
• resistant
• unashamed
• uncaring
• uncompassionate
• unemotional
• unrepenting
• unsubmissive

Strongest matches

• accomplished
• competent
• hardened
• knowledgeable
• qualified
• skillful
• trained
• wise

Strong matches

• instructed
• matured
• practiced
• prepared
• tested
• tried
• vet
• weathered

Weak matches

• adept
• battle-scarred
• been around
• been there
• expert
• familiar
• old hand
• pro
• professional
• veteran
• worldly
• worldly wise

Weak matches

• benumbed
• callous
• coldhearted
• hard as nails
• hardhearted
• insensitive
• seasoned
• tough
• unbending
• unfeeling

Weak matches

• adamantine
• armored
• brass-bound
• durable
• everlasting
• firm
• incorruptible
• indestructible
• infrangible
• invulnerable
• lasting
• nonbreakable
• perdurable
• resistant
• rugged
• shatterproof
• solid
• tight
• unshakable
• unyielding