| anti (antiaging, antiliberal, antiwar) | against |
| de (demote, depress, degrade, deject, deprive | from, down |
| en, em (embrace, enslave) | in, into |
| in, im (inject, inside, impose, implant, imprision) | into |
| in, im, il, ir (illegal, irregular, incorrect, immoral) | not |
| mid (midwest, midway) | middle |
| non (nonsense, nontaxable, nonexistent) | not |
| pre (orewar, preview, prevent) | before |
| semi (semiconductable) | half |
| sub (submerge) | under |
| un (unnatural, unbutton) | not, release |