| A | B |
| anomaly | abnormalilty, peculiarity, oddity, deviant |
| apathy | indifference, detachment, impassive |
| appall | horrify, shock, astound, stupefy |
| apprehend | comprehend, fathom |
| apprehend | seize, capture, collar |
| arbitrary | judgmental, discretionary, capricious |
| arbitrate | adjudicate, mediate |
| array | align, assemble, lineup |
| articulate | enunciate, expound, fluent |
| askew | crooked, uneven, disdainfully |
| assimilate | integrate, homogenize, merge |
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