迷信(めいしん)

めいしん
noun
superstition
culturereligion
1. superstition
A belief or practice based on irrational fear or faith in supernatural forces, rather than reason or knowledge.
それは迷信(めいしん)だ。
That's a superstition.
迷信(めいしん)を信(しん)じる人(ひと)もいる。
Some people believe in superstitions.
The idea that black cats are unlucky is just a superstition.

Common collocations

Cultural note

Well-known Japanese superstitions include avoiding the numbers 4 (四(し), like 死(し) "death") and 9 (九(く), like 苦(く) "suffering"), not sleeping with one's head to the north (北枕(きたまくら), the position of the dead), and not cutting one's nails at night.