noun
old-fashioned idea; outdated thinking
Refers to ideas, beliefs, or ways of thinking that are considered old-fashioned or behind the times. Often used in discussions of social or political thought.
彼は旧思想にとらわれている。
He is stuck in old-fashioned ideas.
その政策は旧思想に基づいている。
That policy is based on outdated thinking.
Compound of 旧 (old, former) and 思想 (thought, ideology).