1.
cheap; inexpensive
Low in price. A somewhat old-fashioned usage.
2.
easy; simplistic; superficial
Taking the easy way without much thought or effort. Often carries a critical nuance of being too simple-minded or lazy in approach.
Sense 2 is the everyday use today and almost always critical: the speaker thinks a solution or idea took too little thought or effort. Sense 1 (cheap) is dated.
Common collocations
- 安直な考え: simplistic thinking
- 安直に考える: to think about something too simply
- 安直な方法: an easy, lazy method
- 安直なネーミング: an unimaginative name