The American Heritage® Dictionary of the English Language, 4th Edition
adj. Unconcerned with or unrelated to history, historical development, or tradition: "All of this is totally ahistorical. There is virtually no evidence in the historical record to support any of it” ( Heritage Foundation Reports).
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. unconcerned with or unrelated to history or to historical development or to tradition
Word Usage
"* A further commenter decries her post as "ahistorical," and takes what we might call the commonsense view: states don't kill people; people kill people."