This is the 8218th most frequent Japanese word.
希薄
"希薄" means "thin," "weak," or "lacking density or substance."
In this sentence, '希薄' describes the degree of interest, conveying it as minimal or faint.
彼の関心は非常に希薄です。
His interest is very shallow.
Here, '希薄' indicates the insufficient presence of specificity in the discussion.
この議論は具体性が希薄だ。
This discussion lacks specificity.
In this context, '希薄' is used to describe a physical scarcity of oxygen in the environment.