1
: having many uncertain or unknown qualities or conditions
an iffy proposition
2
: of inconsistent or unreliable quality
iffiness
noun
Examples of iffy in a Sentence
Recent Examples on the Web
On top of all this, basing nuclear reactions on flowing mixtures of hot liquids involves some areas of nuclear physics that are, in technical terms, a bit iffy.
—
David Szondy, New Atlas, 17 Mar. 2025
Even so, Dylan was pretty iffy on the whole endeavor.
—Jordan Runtagh, People.com, 13 Mar. 2025
Production from the iffy 6-9 spots in the order — and players that aren’t entrenched in the daily lineup.
—Vahe Gregorian, Kansas City Star, 30 Mar. 2025
On top of all this, basing nuclear reactions on flowing mixtures of hot liquids involves some areas of nuclear physics that are, in technical terms, a bit iffy.
—David Szondy, New Atlas, 17 Mar. 2025
See All Example Sentences for iffy
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David Szondy, New Atlas, 17 Mar. 2025
Even so, Dylan was pretty iffy on the whole endeavor.
—Jordan Runtagh, People.com, 13 Mar. 2025
Production from the iffy 6-9 spots in the order — and players that aren’t entrenched in the daily lineup.
—Vahe Gregorian, Kansas City Star, 30 Mar. 2025
On top of all this, basing nuclear reactions on flowing mixtures of hot liquids involves some areas of nuclear physics that are, in technical terms, a bit iffy.
—David Szondy, New Atlas, 17 Mar. 2025
See All Example Sentences for iffy
Cite this Entry
“Iffy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/iffy. Accessed 24 Apr. 2025.
Copy CitationKids Definition
iffy
adjective
if·fy
ˈif-ē 
1
: having many uncertain or unknown qualities or conditions
an iffy situation
2
: of inconsistent or unreliable quality
iffiness
noun
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