Any process that stops, prevents or reduces the frequency, rate or extent of nuclear cell cycle DNA replication.
Synonyms:
exact_synonym:
down regulation of DNA replication involved in S phase; down regulation of nuclear cell cycle DNA replication; downregulation of DNA replication involved in S phase; downregulation of nuclear cell cycle DNA replication; negative regulation of DNA replication involved in S phase
narrow_synonym:
inhibition of DNA replication involved in S phase; inhibition of nuclear cell cycle DNA replication
related_synonym:
down regulation of DNA replication during S phase; downregulation of DNA replication during S phase; inhibition of DNA replication during S phase; negative regulation of DNA replication during S phase