Is HATTY a Wordle Word?

Yes. HATTY is a valid Wordle word.

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

What does HATTY mean?

Of, relating to, or resembling, a hat.“Expect a hat which fits the size of your head – it's a very hatty date .”
Having the features one expects of a hat.“He saw a hat, and a most hatty hat, a piece of green felt, shaped with leather and cloth, combining in itself all the quintessentials of hatness contained in all the hats ever made.”
Fond of hats.“We must confess that we never yet heard of such a very hatty Lord Mayor , though we have frequently heard of a Hatti-Sheriff.”

2 more adjective definitions

Characterized by the wearing of hats.“London remains the hattiest city in the world, and yet in this year of celebrations it has let Paris glorify the birth of the beaver.”
A hat trick.“The England international has been responding to critics on Instagram, commenting under one post regarding the situation: "What do you want me to do, score a hatty in 20?"”

Alternative form of hathi (“an elephant”).“Several herds of wild buffaloes were met on our way , but as our hatties, as well as the drivers, were too done up, we allowed them to pass unmolested.”

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

Starter word rating: WeakIn the top 75% of all valid Wordle words for testing common letters.
Vowels: A
Unique letters: 4 of 5Repeats T
Common letters: A, T

Hard-mode trap: 9 valid words fit the pattern _ATTY. 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.