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Related to atomistical: atomism
at·om·is·tic(ăt′ə-mĭs′tĭk) also at·om·is·ti·cal (-tĭ-kəl)
1. Of or having to do with atoms or atomism.
2. Consisting of many separate, often disparate elements: an atomistic culture.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.