Word Study
somnambulistic
CIDE DICTIONARY
somnambulistic, a.
Of or pertaining to a somnambulist or somnambulism; affected by somnambulism; appropriate to the state of a somnambulist. [1913 Webster]
"Whether this was an intentional and waking departure, or a somnambulistic leave-taking and walking in her sleep, may remain a subject of contention." [1913 Webster]
For further exploring for "somnambulistic" in Webster Dictionary Online