Killing is such an ancient taboo.
Tendulkar's arrival broke the club's ancient taboo against foreigners.
When the Youngest encounters an injured diver, she resolves to help him; and challenge an ancient taboo against contact with humans.
Finally, I came to understand our desire not only to deceive, but to be deceived by the supernatural, or so-called magic, or ancient taboos.
Some see it as reflecting only an odd set of ancient taboos.
He knew that present necessity was often stronger than ancient taboo.
There was an ancient taboo against sexual assault within the confines of a dwelling.
The ancient taboo against standing on a grave has been overturned.
Contagion was so merciless that ancient taboos against water burial had been overthrown.
The breaking of an ancient taboo or an expression of spiritual transformation?