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).
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.