adjectives
immoderately desirous of acquiring e.g. wealth
"they are avaricious and will do anything for money"; "casting covetous eyes on his neighbor's fields"; "a grasping old miser"; "grasping commercialism"; "greedy for money and power"; "grew richer and greedier"; "prehensile employers stingy with raises for their employees"
(often followed by `for') ardently or excessively desirous
"avid for adventure"; "an avid ambition to succeed"; "fierce devouring affection"; "the esurient eyes of an avid curiosity"; "greedy for fame"
wanting to eat or drink more than one can reasonably consume
"don't be greedy with the cookies"
is similar to
given to excess in consumption of especially food or drink
"over-fed women and their gluttonous husbands"; "a gluttonous debauch"; "a gluttonous appetite for food and praise and pleasure"