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Sudden

/ˈsʌdn/

Happening quickly and unexpectedly without prior warning.

Synonyms:

Her sudden kindness and sympathy was too much for me.All of a sudden it went squeak!In sudden fear, he beat loudly upon it.

Late Middle English: from Anglo-Norman French, having Latin roots from subitaneus, based on subitus meaning coming from beneath, unawares.

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