unarithmetical

English

Etymology

From un- +‎ arithmetical.

Adjective

unarithmetical (comparative more unarithmetical, superlative most unarithmetical)

1. Not arithmetical.
   • 1858, Dinah Maria Mulock Craik, A Woman's Thoughts about Women:

     It is not pleasant for lazy ladies to get breakfast over at that regular early hour, which alone sets a household fairly a-going for the day: nor for unarithmetical ladies, who have always reckoned their accounts by sixpences, to put down each item, and persevere in balancing periodically receipts and expenditures […]