1. Incline, the prime minister is believed to be inclining toward an April election 

2. Stance, The doctor’s stance on the issue of abortion is well known 

3. Demeanor, He was surprised by her calm demeanor.

4. Articulation, A good singer needs to have good articulation 

5. Swift, Thank you for your swift reply 

6. Prompt, His comments prompted me to find out more about the situation 

7. Eloquent, She made an eloquent appeal for action 

8. Exponentially,

9. Comment 

10. Report 

11. Approximant 

12. Literal

13. Substantially 

14. Reasonably 

15. Endangered