Complex
7 lettersadjectivecommonUpdated February 2026
Definition
Consisting of many different and connected parts; intricate and complicated. As a noun, it refers to a group of similar buildings or a psychological condition.
“The human brain is an incredibly complex organ.”
Related Words
Word Game Tips
🟩
Wordle
Contains -EX ending; watch for the COMPL- opening sequence
🔤
Scrabble
Worth 18 points; high-value word with X worth 8 points
Explore Similar Words
Try These Tools
Dictionary References
Look up complex in an authoritative dictionary for full definitions, pronunciation, and etymology.
Ready to test your word skills?
Download Word Challenge and challenge yourself with our daily word puzzles. Guess the hidden word in six tries or fewer!