Answer: absolute

AnswerCrossword Clue
ABSOLUTE" . . . ... power corrupts . . . ": Lord Acton
absolutepure
absolutedefinite
absolutecomplete; perfect
absoluteunconditional; perfect; non-relative; fundamental / a fundamental principle
absoluteunrestricted
ABSOLUTEWord with power or zero
ABSOLUTEUtter
ABSOLUTEAdjective with "zero" or "disaster"
ABSOLUTEInfrangible
ABSOLUTETotal
ABSOLUTESheer
ABSOLUTETotal, as secrecy
ABSOLUTEThoroughgoing
ABSOLUTEOutright.
ABSOLUTEPerfect.
ABSOLUTEFree from imperfection.
ABSOLUTEPure.
ABSOLUTEUnquestionable
ABSOLUTEUnlimited
ABSOLUTEOut-and-out
ABSOLUTEUnrestricted
ABSOLUTEUnequivocal