陳臭い (ひねくさい) Japanese meaning | KotomoraMeanings
1
i-adjective
old; stale; musty-smelling
rare term
Describes something that smells or feels old and stale, often with a negative nuance. Rare term; more common synonyms include 古くさい (furukusai).
だ
ね
。
That's a stale way of thinking.