Main entry: absent
Definition: not being in a specified place
Antonyms: present
Definition: being or existing in a specified place
Antonyms: home
Definition: used of your own ground
Main entry: scatty, absent, absentminded, abstracted
Definition: lost in thought; showing preoccupation
Usage: an absent stare; an absentminded professor; the scatty glancing quality of a hyperactive but unfocused intelligence
Antonyms: attentive
Definition: (often followed by `to') giving care or attention
Main entry: missing, absent, wanting, lacking
Definition: nonexistent
Usage: the thumb is absent; her appetite was lacking