List of Prefixes

List of Prefixes with Definition

Below is a list of Prefixes plus definition and examples you should know.

1. Ex-

• Definition: Former, older
• Words: ex-president, ex-boyfriend, exterminate, ex-wife

2. Dis-

• Definition: Not, opposite of
• Words: discord, discomfort, disengage

3. Anti-

• Definition: Against
• Words: antidote, antisocial

4. Pre-

• Definition: Before
• Words: preview, pretest, prevent, preplan

5. Mis-

• Definition: Wrong, wrongly
• Words: misjudge, misinterpret, misguided, mismatch, misplace

6. Post-

• Definition: After
• Words: postgraduate, postdate, postnatal

7. Auto-

• Definition: Self
• Words: automobile, autobus, automatic

8. Re-

• Definition: Again
• Words: rewrite, reread, return, review

9. Un-

• Definition: Not
• Words: uncover, unlock, unsafe, unemployment

10. Ir-

• Definition: Not
• Words: irregular , irresponsible, irritate

11. Mid-

• Definition: Middle
• Words: midterm, Midwest, midstream, midway, midnight

12. Over-

• Definition: Too much
• Words: overload, overdo, overact, overboard, overdose, overweight

13. Semi-

• Definition: Half
• Words: semicircle, semiprecious, semicolon, semifinal

14. Fore-

• Definition: Before
• Words: foreshadow, foresight, foreseeable, forecast, foreground

15. In-

• Definition: Not
• Words: invade, inedible, incapable

16. Non-

• Definition: Not, without
• Words: nonsense, nonverbal, nonstick, nonspecific

17. Inter-

• Definition: Between, among
• Words: interstate, international, intermission, intermingle, interface

18. Sub-

• Definition: Under
• Words: submarine, subtext, substandard, substitute, subversive

19. Super-

• Definition: Above
• Words: supersonic, superstar, supernatural, superstore

20. Trans-

• Definition: Across
• Words: transatlantic, transcend, transfer, transact, transport

List of Prefixes in English