compos mentis
adjective/ˌkɒmpəs ˈmentɪs/
/ˌkɑːmpəs ˈmentɪs/
[not before noun] (from Latin, formal or humorous)- having full control of your mind
- Are you sure she was fully compos mentis when she said it?
Word Originearly 17th cent.: Latin.Definitions on the go
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compos mentis