squandered

(verb) spend thoughtlessly; throw away. Synonyms: waste, blow, squander. Examples: "He wasted his inheritance on his insincere friends." "You squandered the opportunity to get and advanced degree."

(verb) spend extravagantly. Synonyms: consume, squander, waste, ware. Example: "Waste not, want not."

(adj) not used to good advantage. Synonyms: wasted. Examples: "Squandered money cannot be replaced." "A wasted effort."