जो कर्म परिणाम, हानि, हिंसा और सामर्थ्य को न विचार कर केवल अज्ञान से आरम्भ किया जाता है—वह तामस कहा जाता है |

That action which is undertaken through sheer ignorance, without counting the upshot, loss to oneself, injury to others and one’s own capacity, is declared as Tamasika.