Crossword clues for Hard by 4 letters:HARDHardly a no-brainerHARDDickens's "___ Times"HARDChallengingHARDDifficult to deal with.HARDPuzzlingHARDFermentedHARDLike a diamondHARDA __ Day's NightHARDA ___ Day's NightHARDCompact and solid.HARDSolid and compact.HARDMercilessHARDUnrelentingHARDSomewhat high on the Mohs' scaleHARDLike some hats or knocksHARDLike whiskey, as opposed to wineHARD___ Knocks (HBO reality football show)HARDUndeniable, as factsHARDLike jawbreakersHARDExacting.HARDPhysically fit for exertion.HARDIntense.HARDUnsentimental.HARDLike anthracite.HARDPosing a challengeHARD___ sauce.HARDRigidHARDReady to get down, in a wayHARD___ Candy, T. Williams bookHARD___ Copy, TV programHARDWord that can precede the first word of the six longest puzzle answersHARDLike MIT Mystery Hunt puzzlesHARDStrongly alcoholicHARDLike a rockHARDUnyieldingHARDDifficultHARD_ Nosed: toughHARDMohs scale adjectiveHARDLike some factsHARDLike some copies and courtsHARDNo picnicHARD#6HARDLike corundumHARDLike a Friday crosswordHARDSpikenard.HARDAdamant.HARDSevere.HARDUnfeeling.HARDRigorous.HARDKind of sauce.