Definition of iffy
1 : having many uncertain or unknown qualities or conditions an iffy proposition
2 : of inconsistent or unreliable quality
Recent Examples of iffy from the Web
The 1,600 was more iffy in my mind going into the race,’’ Chinn said.
Yet his iffy play in Game 1 continued a troubling trend.
But the stuff on the face is iffy — a lot of children don't want to wear glasses.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'iffy'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of iffy
First Known Use: 1937See Words from the same year
IFFY Defined for English Language Learners
Definition of iffy for English Language Learners
: having many uncertain or unknown qualities or conditions : not certain
: not certain to be good
Seen and Heard
What made you want to look up iffy? Please tell us where you read or heard it (including the quote, if possible).