Definitions

1. noun

a characteristic or trait that is inherited from a remote ancestor, often in a way that seems surprising or inexplicable

“The atavism of the primitive instinct for hunting was still present in the modern city dweller.”

2. noun

the reappearance of a characteristic or trait that has been absent for several generations, often in a population that has undergone significant changes

“The geneticist studied the atavism of the long-lost trait in the isolated community.”

3. noun

an inherited or re-emerging tendency, characteristic, or trait

“The atavism of the family’s artistic talent was evident in the young child’s painting.”