plural of rough rider

Something, such as a steam locomotive, that does not travel smoothly when in motion / (formerly) A person whose speciality was the breaking in or training of wild horses.

plural of rough cut

(film) The second of three stages of offline editing of a film, recognizable as a conventional film but having notable defects such as incomplete narrative flow and missing visual or sound effects.

(historical) Part of the 16th-century wars between Scotland and England, during which an attempt was made to force Scotland to agree to a marriage alliance between Mary, Queen of Scots, and the English heir apparent Edward, son of King Henry VIII.

Of building stone, not smooth, uncut.

plural of rough ride

(slang) The practice of not applying a seat belt to a handcuffed detainee in a transport vehicle before driving erratically, causing that detainee to be violently shaken about.

plural of rough vacuum

(idiomatic) In need of refinement; unsophisticated.