under-rehearsed 
adjective
(Of a performance or performer) insufficiently rehearsed.It is under-rehearsed and the performers are nervous....
- Performances lack focus and the cast are conspicuously under-rehearsed.
- Although the first performance was an under-rehearsed disaster, the work became a great success with the new music scene.
Rhymes
- top something up
- topspin
- topspinner
- topstitch
- topsy-turvily
- topsy-turviness
- topsy-turvy
- topsy-turvydom
- top table
- top ten (or twenty etc.)
- top-tier
- top tip
- top to tail
- top-up
- to put it mildly (or putting it mildly)
- to put on one's running shoes
- topwater
- top weight
- toque
- toquilla
- tor
- Torah
- Torbay
- torc
- torch