Gr. adokimos, (1 Corinthians 9:27), one regarded as unworthy (R.V., "rejected"); elsewhere rendered "reprobate" (2 Timothy 3:8, etc.); "rejected" (Hebrews 6:8, etc.).

Noah Webster's New International Dictionary of the English Language

1. (n.) One who, or that which, is cast away or shipwrecked.

2. (n.) One who is ruined; one who has made moral shipwreck; a reprobate.

3. (a.) of no value; rejected; useless.