Prefix
| Root Word | Prefix | Opposite Word |
|---|---|---|
| pure | im | impure |
| regular | ir | irregular |
| relevant | ir | irrelevant |
| resistible | ir | irresistable |
| responsible | ir | irresponsible |
| agree | dis | disagree |
| approve | dis | disapprove |
| belief | dis | disbelief |
| colour | dis | discolour |
| connect | dis | disconnect |
| Root Word | Prefix | Opposite Word |