scatty

(s) lacking sense or discretion
- his rattlebrained crackpot ideas
- how rattlepated I am! I've forgotten what I came for - Glenway Westcott
rattlebrained, rattlepated, scatterbrained,
(s) lost in thought; showing preoccupation
- an absent stare
- an absentminded professor
- the scatty glancing quality of a hyperactive but unfocused intelligence
absentminded, abstracted, absent,

rattlebrained rattlepated scatterbrained absentminded abstracted absent

scathe