aberrant
deviating form the norm
The mother began to worry when all of her son’s teachers complained of this aberrant behavior.
abet
to actively encourage or support
The protesters gathered to abet the legalization of same-sex marriages.
acerbic
The medicine’s acerbic flavor caused the child to flinch.
amenity
The quality of being pleasant or agreeable; something that is conducive to conveninece and pleasure.
Proponents say specialty hospitals offer hotel-like amenities to patients.