The antonyms for the word "over-taxed" include "under-taxed," "easy-going," "lighter," "untaxed," and "relaxed." Those words imply that either the burden of paying taxes is not high enough or that it is a more manageable level to handle. They may also denote that the individual or entity does not face excessive demands, pressure, or stress. Antonyms for "over-taxed" can also be used in various contexts, from describing a person's workload or responsibilities to making observations about national economic policies. Depending on the situation, different antonyms can convey distinct shades of meaning and nuance.