Pleonectic is a rarely used word that refers to someone who is excessively greedy or selfish. Synonyms for this word include avaricious, acquisitive, covetous, grasping, and rapacious. These words all describe someone who is overly concerned with accumulating wealth, possessions, or power. Alternatively, synonyms for pleonectic that describe someone who is focused on themselves rather than others include self-centered, egotistical, narcissistic, and egoistic. These words all suggest that someone is preoccupied with their own needs and desires to the detriment of others. Regardless of the exact word used, they all describe someone who is overly self-focused at the expense of others.