Throwaway
Part of speech: adjective
Definition: Disposable; intended for a single use prior to being discarded. Extemporaneous; off the cuff. One designed for single use.
Discarded
Part of speech: verb
Definition: To throw away, to reject.
Example sentence: Elegance is achieved when all that is superfluous has been discarded and the human being discovers simplicity and concentration: the simpler and more sober the posture, the more beautiful it will be.