She blinked up out of her avid shameclosing eyes, mewing plaintively and long, showing him her milkwhite teeth.
—O, my corns! he said plaintively.
His breath, birdsweet, good teeth he’s proud of, fluted with plaintive woe.
BLOOM: (Plaintively) Hugeness!
A posse of Dublin Metropolitan police superintended by the Chief Commissioner in person maintained order in the vast throng for whom the York street brass and reed band whiled away the intervening time by admirably rendering on their blackdraped instruments the matchless melody endeared to us from the cradle by Speranza’s plaintive muse.
There are no more uses of "plaintive" in the book.