That action which is undertaken from delusion, without regard for the consequences, loss, injury, and one's own ability, is declared to be Tamasic (dark).

Swami Sivananda

That action is said to be born of tamas which is undertaken out of delusion, without consideration of its consequences, loss, harm, and ability.

Swami Gambirananda

Follows the commentary of Shankara (Advaita).

That act is said to be Tamasika which is undertaken through delusion, without regard to consequences, loss, injury, and one's own capacity.

Swami Adidevananda

Follows the commentary of Ramanuja (Vishishtadvaita).

The object which is gained, due to ignorance, without considering the result, the loss, the injury to others, and one's own strength—that is declared to be of the Tamas (Strand).

Dr. S. Sankaranarayan

Follows the commentary of Abhinavagupta (Kashmir Shaivism).

An action undertaken through delusion, with no regard to the spiritual implications, the capacity of the doer, or the potential harm that may follow, is assumed to be a product of ignorance.

Shri Purohit Swami

जो कर्म परिणाम, हानि, हिंसा और सामर्थ्यको न देखकर मोहपूर्वक आरम्भ किया जाता है, वह तामस कहा जाता है।

Swami Ramsukhdas

जो कर्म परिणाम, हानि, हिंसा और सार्मथ्य (पौरुषम्) का विचार न करके केवल मोहवश आरम्भ किया जाता है, वह कर्म तामस कहलाता है।

Swami Tejomayananda