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Synonyms

daffy

American  
[daf-ee] / ˈdæf i /

adjective

Informal.
daffier, daffiest

  1. silly; weak-minded; crazy.

daffy British  
/ ˈdæfɪ /

adjective

  1. informal another word for daft daft

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • daffily adverb
  • daffiness noun

Etymology

Origin of daffy

1880–85; daff (obsolete; daff 1 ) + -y 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This is something far more daffy and useless: The brouhaha over unrequited affections between Seattle Mariners at the World Baseball Classic.

From The Wall Street Journal • Mar. 16, 2026

Some wizard just proposed fixing this daffy, diluted, far-too-long 16 team playoff by making it 24 teams.

From The Wall Street Journal • Jan. 20, 2026

Frank Drebin, Neeson kept us in hysterics with a stupid-brilliant barrage of surreal wordplay and daffy slapstick.

From Los Angeles Times • Dec. 5, 2025

But the order wasn’t just daffy; it was pernicious.

From Seattle Times • Apr. 4, 2024

Noah and I are about eight and dressed in matching sailor outfits looking totally daffy.

From "I'll Give You the Sun" by Jandy Nelson

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.