As adverbs the difference between spiffily and sniffily
is that spiffily is (colloquial) in a spiffy manner; done with style while sniffily is in a sniffy manner.
spiffily
English
Adverb
(
en adverb)
(colloquial) In a spiffy manner; done with style.
- He is always dressed spiffily .
sniffily
English
Synonyms
* disdainfully
* haughtily