| duplicitous | Deceitful | |
| dyspeptic | Of or having indigestion or consequent irritability or depression | |
| ebullient | Full of cheerful excitement or enthusiasm | |
| eclectic | Deriving ideas, style, or taste from a broad and diverse range of sources | |
| effaced | Erased (a mark) from a surface | |
| effete | Depleted of vitality, force, or effectiveness; exhausted | |
| efficacious | Having the power to produce a desired effect or result; effective | |
| effluvium | An unpleasant or harmful odor, secretion, or discharge | |
| effrontery | Insolent or impertinent behavior | |
| effusive | Expressing feelings of gratitude, pleasure, or approval in an unrestrained or heartfelt manner | |