Solemnly serious (5)
I believe the answer is:
sober
(Other definitions for sober that I've seen before include "Snot drunk" , "Abstinent" , "Unaffected by drink" , "Dignified and serious" , "In control of one's faculties" .)
I believe the answer is:
sober
(Other definitions for sober that I've seen before include "Snot drunk" , "Abstinent" , "Unaffected by drink" , "Dignified and serious" , "In control of one's faculties" .)