The Collaborative International Dictionary
niffy \niffy\ adj. Malodorous, unpleasant-smelling. Opposite of fragrant.
Wiktionary
a. (context colloquial English) Having a bad smell.
WordNet
adj. (British informal) malodorous
Usage examples of "niffy".
Especially Niffy Gliff, who is half dragon, half Pegasus, with a unicorn horn from somewhere in her ancestry.
And there, gliding in, was Niffy Gliff, the combination griffin Pegasus with the horn.
She made exploratory small gestures with her hands on his chest, the side of his neck, without disturbing the vigilant Niffy.
King Mavron installed Niffy on her own chair with a table just the right height for her to eat from a dish of livers and other tender morsels which he himself had interviewed the chef to provide.
Her eyes, already dark from weeping and frustration, widened even more at the sight of Niffy shaking her ruffled fur into place.