Anagrams of: IMPERTURBATION

• persistent to the point of annoying

• expressing persistant and earnest entreaty

• an event in which one thing is substituted for another

• the act of changing the arrangement of a given number of elements

• complete change in character or condition

• act of changing the lineal order of objects in a group

• curving outward

• The act of impetrating, or obtaining by petition or entreaty.

• The obtaining of benefice from Rome by solicitation, which benefice belonged to the disposal of the king or other lay patron of the realm.

• a shallow drum with a single drumhead and with metallic disks in the sides

• a fringe region of partial shadow around an umbra

• a statement attributing something dishonest (especially a criminal offense)

• the attribution to a source or cause

• A smooth, gliding transition from one note to another; used especially with stringed instruments, and sometimes on brass.