from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adverb informal In an
Sorry, no etymologies found.
“Think there was anything…” Pender put down his bottle and waggled his good hand iffily.
Fear Itself Jonathan Nasaw 2003
ABC has picked up eight more episodes of its iffily rated reality show "Shark Tank" -- three of which will feature comedian Jeff Foxworthy as a guest shark.
From Inside the Box 2010