mixed up; mixing up; mixes up
1
: to mistakenly think that (someone or something) is someone or something else : confuse
mixed the twins up
mixed up the times for the meetings
2
: to mistakenly put (something) in a place where something else should be
mixed up the two files
3
: to cause (someone) to be involved in a usually dangerous or improper activity
—usually used as (be/get) mixed up in
got mixed up in an illegal scheme
4
: to cause (someone) to become involved with usually bad or dangerous people
Cite this Entry
“Mix up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mix%20up. Accessed 16 Aug. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
