perfunctory

From Dictionary.com/Word of the Day

perfunctory \pur-FUNGK-tuh-ree\, adjective:
1. Done merely to carry out a duty; performed mechanically or routinely.
2. Lacking interest, care, or enthusiasm; indifferent.

Perfunctory derives from Late Latin perfunctorius, from Latin perfungi, "to perform fully, to get done with," from per-, "through" + fungi, "to perform."