Is MISDO a Wordle Word?

Yes. MISDO is a valid Wordle word.

It is not on the Wordle answer list, so it is unlikely to be a daily answer.

What does MISDO mean?

/mɪsˈduː/

To do evil; to commit misdeeds.
To do (something) incorrectly or improperly.“Afford me place to ſhew what recompence / Towards thee I intend for what I have miſdone,[…]”
To do harm to; to injure, mistreat.

Definition from Wiktionary, available under the CC BY-SA license.

Starter word rating: WeakIn the top 60% of all valid Wordle words for testing common letters.
Vowels: I, O
Unique letters: 5 of 5
Common letters: I, O

Letter ratings use how often each letter appears in Wordle answers.

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