What does frightfulness mean?
Frightfulness is a noun denoting the quality of being frightening, dreadful, or shocking — the property of inspiring terror or revulsion. It can describe anything from the visceral horror of a disaster to the calculated brutality of human conduct, and in its second, more specific sense it refers to the deliberate use of terror as an instrument of war or policy. This strategic meaning became prominent during the First World War, when British commentators used 'frightfulness' to translate the German concept of Schrecklichkeit, the policy of intimidating civilians through severe reprisals. Today the word survives chiefly in formal, literary, or historical contexts; in everyday speech, terms like horror or terror have largely displaced it. Derived from the ancient Germanic root behind 'fright', it belongs to a small family that includes frightful, frightfully, and frighten. Its enduring value lies in naming not just an emotion, but the deliberate manufacture of that emotion.
The quality or state of being frightening, dreadful, or shocking.
"The frightfulness of the storm kept everyone indoors all night."
The deliberate use of terror or extreme severity as a policy or strategy, especially in warfare.
"Historians still debate whether the campaign of frightfulness strengthened or weakened the enemy's resolve."
This sense is primarily associated with First World War historiography and is now rare outside historical contexts.
Rarely used; frightfulness normally functions as an uncountable mass noun referring to a quality. A plural form exists grammatically but appears almost exclusively in older or highly formal texts.
"The memoir catalogued the frightfulnesses endured during the occupation."
During the First World War, the Germans had a formal military doctrine so notorious the British press gave it a name of its own: 'frightfulness' — their translation of the German Schrecklichkeit.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of frightfulness
Frightfulness is formed within English from the adjective 'frightful', which derives from 'fright', a native Germanic word traceable to Old English 'fyrhto', meaning fear or terror. The suffix '-ness' converts the adjective into an abstract noun denoting the quality itself. Cognates of the underlying root appear across the Germanic languages, including related words for fear in Old Frisian and Gothic. The word has been part of English since at least the early modern period, gaining particular prominence during the First World War era.
Related word forms
How frightfulness is actually used
The word carries a strongly negative connotation and tends to sound somewhat formal or old-fashioned today. Its strategic sense — terror as deliberate policy — was especially current during and after the First World War and now appears mainly in historical writing. Note that in older British informal usage, 'frightful' could ironically mean merely 'very bad or unpleasant', but 'frightfulness' never took on this softened sense.
Easily confused with frightfulness
Frightful is an adjective describing something that causes fright or is dreadful, while frightfulness is the noun naming that quality itself.