Honey Heist

1. No, you can't "undo" Awaken with anything short of a Wish spell: Awaken has a duration of Instantaneous, so once it occurs, the spell is done. The only magic effect remaining on the creature is Charmed (30 day duration). Dispel Magic & Anti-Magic have no effect on the Int because other than Charmed, there is no magical effect remaining upon the animal: It's not enchanted, it's transmuted. It simply has 10 on its Int attribute now. You could end the Charmed effect early, but the Int remains. 

Even when True Polymorph is made "permanent" by Concentration maintained for its full hour, True Polymorph explicitly states that it "lasts until it is dispelled". The condition under which True Polymorph can be dispelled is a specific statement pertaining to True Polymorph, not a general rule. Awaken lacks any such wording, and is an Instantaneous spell of the Transmutation school; as such it is permanent unless otherwise stated, & it does not state otherwise. You can't dispel Awaken.

2. As mentioned, Feeblemind reduces a creature's Int to 1. (Instantaneous, with an Int save each 30 days, removed by greater restoration, heal, or wish.) If a creature is a Beast, it could be knocked down to 1 & then have Awaken cast upon it to raise to to 10. Casting Feeblemind on an awakened creature would reduce it to 1 until it succeeds on an Int save against your Spell Save DC (bearing in mind, that's once per month, at -5); so it's not as permanent, but it is crippling. 

3. True Polymorph the awakened beast back into a regular beast. Lasts until dispelled. 

Ultimately, it's probably intended that there be nothing that permanently reduces a creature with 10 Int, to 4 or less, because then it could be done to players, too.

so my druid made the dumb descion and gave this spell to a necromatic wizard now he's making a flesh zord golem with a greendragon chest 

I want to play a chaotic evil druid that awakens the towns work animals...

HAIL THE DEAR LEADER

Can you awaken a character affected by feeblemind?

Quote from Z0mb13_Phrog >>

Can you awaken a character affected by feeblemind?

 I doubt most characters are beasts or plants.

I want to know the official limitations.

It states Beast or Plant - so are Aberrations, Constructs, Elementals, Fiends, Monstrosities, Ooze, and Undead - even with Int of 3 or less not able to be awakened? I would have thought not but am seeing otherwise being done without stating that it was outside game rules. 

*Ayayayayay Intensifies*

I've thought of a cursed weapon that casts Awaken on an animal the moment you kill it... it only has time to scream "whyyyy?" before dying. 

Quote from FaelanRuadh >>

I want to know the official limitations.

It states Beast or Plant - so are Aberrations, Constructs, Elementals, Fiends, Monstrosities, Ooze, and Undead - even with Int of 3 or less not able to be awakened? I would have thought not but am seeing otherwise being done without stating that it was outside game rules. 

 Only Beasts and Plants. You can't awaken any other creature/object with this spell. I could see DMs houseruling otherwise, or inventing other spells such as "Awaken Construct" but you'd need to carefully balance those... the potential of an awakened iron golem could be problematic.

Awaken Ooze would be a great spell because who doesn't want a friendly gelatinous cube!

“Ayyayyayyay!”

*menacing awakened trees*

Awaken monstrosity with a CR limit?

Quote from Mailcs06 >>

“Ayyayyayyay!”

*menacing awakened trees*

 This may explain the name of the town Braintree, Massachusetts.

Dispel Magic should work just fine

Im going to use this on my party's boat in a pirate campaign and nothing can stop me

Quote from vulcanrock >>

With this spell you can have a T-rex butler. 

 Lol

Quote from N4m3 >>

Awaken works against a large or smaller creature that has an intelligence score of 3 or less

Cast Reduce on a Tarrasque, possibly Hold Person too to keep it still for the casting time of awaken, and you can awaken a Tarrasque, giving it sentience and an intelligence score of 10 (It would also be charmed by you for 30 days, which is powerful too)

So yeah if you want your BBEG to have a pet Terrasque, this is how

Quote from N4m3 >>

Awaken works against a large or smaller creature that has an intelligence score of 3 or less

Cast Reduce on a Tarrasque, possibly Hold Person too to keep it still for the casting time of awaken, and you can awaken a Tarrasque, giving it sentience and an intelligence score of 10 (It would also be charmed by you for 30 days, which is powerful too)

So yeah if you want your BBEG to have a pet Terrasque, this is how

Quote from N4m3 >>

Awaken works against a large or smaller creature that has an intelligence score of 3 or less

Cast Reduce on a Tarrasque, possibly Hold Person too to keep it still for the casting time of awaken, and you can awaken a Tarrasque, giving it sentience and an intelligence score of 10 (It would also be charmed by you for 30 days, which is powerful too)

So yeah if you want your BBEG to have a pet Terrasque, this is how

 I was thinking the same thing

It says "a Beast or Plant" so that Makes me wonder, Can it awaken Monstrosities?

Unawaken = Feeblemind?