Is RATED a Wordle Word?

Yes. RATED is a valid Wordle word.

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

Past-tense words ending in ED are almost never chosen as Wordle answers.

What does RATED mean?

/ˈɹeɪtɪd/

To assign or be assigned a particular rank or level.“She is rated fourth in the country.”
To evaluate or estimate the value of.“They rate his talents highly.”
To consider or regard.“He rated this book brilliant.”

8 more verb definitions

To deserve; to be worth.“The view here hardly rates a mention in the travel guide.”
To determine the limits of safe functioning for a machine or electrical device.“The transformer is rated at 10 watts.”
To evaluate a property's value for the purposes of local taxation.
To like; to think highly of.“The customers don't rate the new burgers.”
To have position (in a certain class).“He rates as the best cyclist in the country.”
To have value or standing.“This last performance of hers didn't rate very high with the judges.”
To ratify.
To ascertain the exact rate of the gain or loss of (a chronometer) as compared with true time.

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

Starter word rating: ExcellentIn the top 2% of all valid Wordle words for testing common letters.
Vowels: A, E
Unique letters: 5 of 5
Common letters: R, A, T, E

Hard-mode trap: 13 valid words fit the pattern RA_ED. If you reach it, you may need several guesses to find the last letter.

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

Tap its tiles to the colours Wordle showed, and the Wordle Solver lists every word that still fits, with the best next guess.