Definition of "frightfulness" [fright•ful•ness]

• The quality of being frightful. (noun)

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• "When the future historian gives to another age his account of all that is included in German "frightfulness," there is no feature upon which he will dilate more emphatically than the extraordinary use made by the enemy of their Zeppelin fleet."
• "Once again German frightfulness had failed -- and failed badly -- to attain its desired end."
• "MIT Press The bombing for the sake of "frightfulness" (an imitation of the Germans) and the insolent demand for unconditional surrender, and the blind policy with Russia were all blunders as well as wrongs, and have produced a stale-mate where materially there was a clear victory."