Blindered

Part of speech: adjective

Definitions

1. To be equipped with a form of protection that limits vision while also metaphorically describing a narrow-minded or uninformed person who refuses to see broader perspectives
2. A state of having restrictions on one's visual field or being blind to certain ideas, reflecting a mind closed to alternative viewpoints or information
3. An occurrence of having one's sight obstructed or being unable to appreciate a wider range of options, which signifies a refusal to consider new or differing opinions

Etymology: "Blindered" is simply "blinder" with the adjective-forming ending "-ed" added to it. A blinder is one of the leather flaps fitted beside a horse's eyes to stop it seeing sideways, and the "-ed" ending turns that noun into a description of something or someone wearing such flaps. The figurative sense, with the mind or outlook narrowed to a single line of view, grows naturally from the literal picture of the horse.