Dictionary.com

ill-formed

[ il-fawrmd ]
/ ˈɪlˈfɔrmd /
Save This Word!

adjective
badly formed.
Linguistics. not conforming to the rules of a given language; ungrammatical (opposed to well-formed).
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of ill-formed

First recorded in 1665–75

OTHER WORDS FROM ill-formed

ill-form·ed·ness [il-fawr-mid-nis, -fawrmd-], /ˈɪlˈfɔr mɪd nɪs, -ˈfɔrmd-/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use ill-formed in a sentence

FEEDBACK