Plummier [adjective]

Definition of Plummier:

resonant

There might be Guava jelly, and a plummy cake, For such a prize I'd laugh to scorn a stomach-ache!

With these words he put down the dish, with the 'plummy' end of the pudding turned towards himself.

The plummy little dark-eyed one, Will—not that shrill little fiend.

But it is easy to overdo the plummy tone, which is apt to become cloying.