Antidote
Noun/ a medicine to counteract a poison or disease
Antediluvian
Adj (extremely ancient)
Apathy
Noun/ lack of caring
Apocryphal
Adj/ made up
Arbitrary
Adj/ randomly chosen
Ascendancy
Noun/ domination
Astute
Adj/ wise
Atrophy
Noun/ wasted away
Audacious
Adj/ daring
Austere
Adj/ forbiddingly stern
Avarice
Noun/ greediness for wealth
Aviary
Noun/ enclosure for birds
Banal
Adj/ lacking originality, commonplace
Beguile
Verb/ pass time
Benevolent
Adj/ generous