na-adjective
Describes a person or viewpoint that sees things from only one perspective, lacking breadth or foresight. Often used critically.
彼の単眼的な考え方では、この問題は解決できない。
With his narrow-minded way of thinking, this problem cannot be solved.
単眼的な視点ではなく、もっと多角的に物事を見るべきだ。
You should look at things from multiple angles, not from a short-sighted perspective.
A common phrase meaning 'narrow-minded' or 'having a narrow outlook', similar in meaning but more colloquial.
Compound of 単眼 (tangan, 'single eye') + 的 (-teki, '-like'). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning of seeing things from only one perspective.