noun

derangement

derangement, madness, disorder

He suffered from mental derangement.

He suffered from mental derangement.

The storm caused a derangement of our plans.

The storm caused a derangement of our plans.

a derangement of ((sth.)) The schedule suffered a complete derangement.

Synonyms: insanity, madness, disorder; Antonyms: order, sanity

From French 'déranger' (to disturb), from 'de-' (expressing removal) + 'ranger' (to arrange). Literally, 'to un-arrange'.

Break it down: 'de-arrange-ment'. It's the state of being un-arranged, either in the mind or in a plan.

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