| A | B |
| arbitrary | Based on whim or impulse rather than on reason or law. |
| coincidental | Occurring as a combination of circumstances that, although accidental, is so remarkable that is seems to have been planned or arranged. |
| contrive | To plan cleverly; invent, especially without preparation. |
| deliberation | Careful thought in decision-making or action. |
| fortuitous | Occurring unexpectedly or without any known cause; unplanned. |
| haphazard | Lacking any definite plan or order; random. |
| intent | An aim or purpose. |
| Premeditated | Planned, arranged, or plotted in advance. |
| spontaneous | Happening without external cause; self-generated. |
| unwitting | Not knowing; unaware. |
| affectation | Artificial behavior adopted to impress others . |
| beneficiary | A person who receives funds from an insurance policy or will upon another's death. |
| defect | A flaw or imperfection. |
| efficacy | The power or capacity to produce the desired effect; effectiveness. |
| faction | A group of persons forming a united but sometimes discontented and troublesome minority within a larger group. |
| factor | Something that helps bring about a certain result; an ingredient. |
| officiate | To serve in a position of authority; to preside. |
| officious | Excessively forward in offering one's services or advice to others. |
| prolific | Causing or maintaining abundant growth. |
| suffice | To meet present needs; be adequate. |