1. A belief or conviction that deviates from established, traditional, or widely accepted doctrines, especially in religion, philosophy, or ideology
His unorthodox belief that the earth was round was controversial in the 15th century.
Sua crença não ortodoxa de que a terra era redonda era controversa no século XV.
2. A viewpoint or conviction that challenges conventional wisdom or mainstream thinking
The scientist's unorthodox belief about the origins of the universe sparked intense debate.
A crença não ortodoxa do cientista sobre as origens do universo provocou um intenso debate.