inattentive
abbreviated
abridged
absent
absentminded
absorbed
abstract
abstruse
apart
bemused
bobbed
buried in thought
capsule
capsulized
castle-building
clipped
compressed
condensed
cropped
curtailed
cut short
daydreaming
daydreamy
difficult
digested
distrait
docked
dreaming
dreamy
drowsing
ecstatic
elided
elliptic
elsewhere
engaged in thought
engrossed
engrossed in thought
faraway
half-awake
heedless
ideal
immersed in thought
in a reverie
in the clouds
intent
introspective
lost
lost in thought
meditative
mooning