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Antonyms
Official letter

Meaning Synonyms Antonyms Rhymes Sentences Translate Word Type Pronunciation Word Forms

Official letter

Antonyms for "official letter" (6 found)

Adjective(6 words)

casual informalinformal letterinformal noteunofficialunofficial message

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Source note: This entry is assembled from open lexical datasets and WordToolSet editorial checks. See our data sources and editorial policy. Last reviewed May 2026.

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