| dedicated(adjective, clear, tough, severe, keen) |
| definite(adjective, certain, sure, guaranteed) |
| designing(adjective, energetic, enthusiastic, determined, ardent) |
| desiring success(expression, energetic, enthusiastic, determined, ardent) |
| desirous(adjective, energetic, enthusiastic, determined, ardent) |
| despotic |
| disdainful |
| disrespectful(rude, arrogant, presuming) |
| eager(adjective, clear, tough, severe, keen) |
| eager beaver(expression, energetic, enthusiastic, determined, ardent) |
| earnest(adjective, keen, energetic, passionate, enthusiastic) |
| energetic(adjective, tough, smart, enthusiastic, determined) |
| enthusiastic(adjective, keen, energetic, passionate, determined) |
| fearless(certain, sure, brave, daring, self-assured) |
| fervent(adjective, clear, tough, severe, keen) |
| fervid(adjective, clear, tough, severe, keen) |
| fireball(adjective, keen, energetic, passionate, enthusiastic) |
| firm |
| firm-minded |
| foolhardy(rude, aggressive, daring, arrogant, adventurous) |