callous
hard
hardened
impenitent
insolent
obdurate
unabated
unabject
unallayed
uncontrite
unextinguished
unmelted
unmitigated
unquelled
unquenched
unrepentant
unrepenting
unsubdued
untempered
untouched
2.6-percent
60-watt
gas jet
half-blinded
overcast
refrangible
sacrosanct
ten-cent
unobscured
unsheltered