Answer: brutal

AnswerCrossword Clue
BRUTALHarsh
brutalcruel (disposed to inflict pain)
brutalsevere
brutalcruel
BRUTALLike winters in Antarctica
BRUTALPunishingly difficult
BRUTALSevere, as weather
BRUTALExtremely harsh
BRUTALPulling no punches
BRUTALVicious
BRUTALVery harsh
BRUTALLike the heaviest metal
BRUTALMonstrous
BRUTALReally, really tough
BRUTALDisagreeably direct
BRUTALBeastly
BRUTALBestial
BRUTALFierce
BRUTALCold-blooded
BRUTALRuthless.
BRUTALCruel.
BRUTALSavage.
BRUTALSavage
BRUTALAwfully cruel
BRUTALTaxing
BRUTALPainful, as honesty
BRUTALMerciless
BRUTALHarsh-plus
BRUTALMore than just harsh