Definition of ill-defined
: not easy to see or understand
The property's borders are ill-defined. an ill-defined mission
Learn More About ill-defined
Statistics for ill-defined
Look-up Popularity
Cite this Entry
“Ill-defined.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ill-defined. Accessed 6 Jul. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
Great Words for Scrabble
-
- Which of the following Q-without-U words means the number five in cards or dice?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Brand Name Vocabulary Quiz
You’re gonna need some moxie to ace this quiz
Take the quiz
-
Commonly Confused Words Quiz
Take a (break/brake) and (pore/pour) over this (c...
Take the quiz
-
Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz
-
Spelling Bee Quiz
Can you outdo past winners of the National Spelli...
Take the quiz
Share ill-defined