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
Many sports injuries come from iffy form when landing.
—
Henry Abbott, The Atlantic, 12 July 2025
The fate of the world, naturally, again turns iffy.
—Jake Coyle, Mercury News, 10 July 2025
Though the research is still iffy on how certain types could ease tummy troubles, there’s logic behind the hype: A gut microbiome that’s off-kilter, or running relatively low on those supportive critters, is linked with GI (and other) woes.
—Erica Sloan, SELF, 7 July 2025
However, watchdog groups said that for data centers the tradeoffs are iffy, because the facilities don't tend to create large numbers of jobs, while the amount of electricity required can be immense.
—Paige Tortorelli,pippa Stevens,agne Tolockaite, CNBC, 20 June 2025
See All Example Sentences for iffy
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Henry Abbott, The Atlantic, 12 July 2025
The fate of the world, naturally, again turns iffy.
—Jake Coyle, Mercury News, 10 July 2025
Though the research is still iffy on how certain types could ease tummy troubles, there’s logic behind the hype: A gut microbiome that’s off-kilter, or running relatively low on those supportive critters, is linked with GI (and other) woes.
—Erica Sloan, SELF, 7 July 2025
However, watchdog groups said that for data centers the tradeoffs are iffy, because the facilities don't tend to create large numbers of jobs, while the amount of electricity required can be immense.
—Paige Tortorelli,pippa Stevens,agne Tolockaite, CNBC, 20 June 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 20 Jul. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share