OVERCONSCIENTIOUS Meaning of OVERCONSCIENTIOUS in English | ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ adjective : unduly or excessively conscientious Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012