iffy

When something's iffy, it's uncertain. You might want to reschedule your picnic if the weather looks iffy.

Use the adjective iffy to describe things that might change, or are doubtful. If you break your ankle in June, the chances that you'll be able to run a marathon in August are iffy. You could also say that it's iffy your unreliable cousin will show up at your birthday party on time. Iffy has been around since the 1930's, when President Franklin D. Roosevelt invented it, taking the word if, turning it into an adjective, and using it often.

Definitions of iffy
  1. adjective
    subject to accident or chance or change
    “an iffy proposition”
    synonyms: chancy, flukey, fluky
    uncertain
    not certain to occur; not inevitable
Word Family
EDITOR’S CHOICE

Test prep from the experts

Boost your test score with programs developed by Vocabulary.com’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.

SAT/PSAT

$29.95
  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week

TOEFL

$29.95
  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week