Undiscriminating
(adjective)
Not able to see the difference between things and make good choices; lacking discrimination.
Origin:
From un- (not) + discriminating (able to see the difference between things and make good choices).
Examples:
- His undiscriminating palate couldn't tell the difference between good wine and bad wine.
- She had an undiscriminating attitude towards fashion and wore anything.
- Their undiscriminating taste in music led them to enjoy all genres equally.
- He had an undiscriminating approach to choosing friends.
- Her undiscriminating eye could not distinguish between a masterpiece and a copy.