apt

adjective

1. 1

   being of striking appropriateness and pertinence

   the successful copywriter is a master of apposite and evocative verbal images

   an apt reply

2. 2

   (usually followed by `to') naturally disposed toward

   he is apt to ignore matters he considers unimportant

   I am not minded to answer any questions

3. 3

   mentally quick and resourceful

   an apt pupil

   you are a clever man...you reason well and your wit is bold"-Bram Stoker

4. 4

   at risk of or subject to experiencing something usually unpleasant

   he is apt to lose

   she is liable to forget