| disputatious | Fond of or causing heated arguments | |
| dispassionate | Not influenced by strong emotion, and so able to be rational and impartial | |
| disparate | Essentially different in kind; not allowing comparison | |
| dismissive | Feeling or showing that something is unworthy of consideration | |
| dismantle | To take apart or disassemble, often in a careful or methodical manner | |
| discriminate | Recognize a distinction; differentiate. | |
| discrete | Individually separate and distinct | |
| discrepancy | A lack of compatibility or similarity between two or more facts | |
| disconcert | To disturb the composure of; unsettle | |
| discomfit | To make (someone) feel uneasy, embarrassed, or confused; to disconcert | |