mediumistic
adjective
me·di·um·is·tic ˌmē-dē-ə-ˈmi-stik 
: of, relating to, or having the qualities of a spiritualistic medium
Word History
First Known Use
1860, in the meaning defined above
- on one's own initiative
- on one's own merits
- on one's own responsibility
- on one's own terms
- on one's own time
- on one's part
- on one's plate
- on one's sleeve
- on one's tiptoes
- on one's toes
- on one's uppers
- on one's way
- on order
- on pain of
- on paper
- on par with
- on parade
- on payment of
- on percussion
- on pins and needles
- on pitch
- on point
- on points
- on premises
- on prescription