adjective. Roving, especially in search of adventure.

adjective. Failing to adhere to guidelines or moral standards.

adjective. undefined

adjective. Moving from the proper course or established limits.

adjective. Aimless or irregular in motion.

adjective. Missing an intended target or recipient.

Wandering; roving; rambling: applied particularly to knights (knights errant) of the middle ages, who are represented as wandering about to seek adventures and display their heroism and generosity.

Deviating; straying from the straight, true, or right course; erring.

In zoology, free; not fixed; locomotory; specifically, pertaining to the Errantia; not tubicolous: as, the errant annelids.

Notorious; manifest: in this sense now spelled only arrant. See arrant, 2.

noun. A knight errant.

Itinerant.

noun. One who wanders about.

adjective. Wandering; deviating from an appointed course, or from a direct path; roving.

adjective. Notorious; notoriously bad; downright; arrant.

adjective. Journeying; itinerant; -- formerly applied to judges who went on circuit and to bailiffs at large.

adjective. straying from the proper course or standard, or outside established limits

adjective. prone to making errors

adjective. utter, complete (negative); arrant

adjective. uncontrolled motion that is irregular or unpredictable

adjective. straying from the right course or from accepted standards

"Never shoot at anything without a clearly apparent backstop to contain errant rounds."