pros and cons

WordReference Random House Unabridged Dictionary of American English © 2026

pros′ and cons′, 

1. the favorable and the unfavorable factors or reasons;
   advantages and disadvantages.

Collins Concise English Dictionary © HarperCollins Publishers::

pros and cons noun:plural

1. the various arguments in favour of and against a motion, course of action, etc

Etymology: 16th Century: from Latin prō for + con, from contrā against