adj. deviating from what is normal

When a person's behavior becomes aberrant, his or her peers may become concerned that the individual is becoming a deviant (a person whose behavior differs from the accepted standards of society).  

*Aberration (n.): something different from the usual or normal.  

n. temporary suppression or suspension

A good judge must hold his or her judgment in abeyance until all the facts in a case have been presented.

v. to depart secretly 

A warrant is out for the arrest of a person believed to have absconded with three million dollars.  

adj. moderate in appetite

Some research suggests that people with an abstemious lifestyle tend to live longer than people who indulge their appetites.