Nouns

(n)waste, waste material, waste matter, waste productany materials unused and rejected as worthless or unwanted“they collect the waste once a week”, “much of the waste material is carried off in the sewers”
(n)waste, wastefulness, dissipationuseless or profitless activity; using or expending or consuming thoughtlessly or carelessly“if the effort brings no compensating gain, it is a waste”, “mindless dissipation of natural resources”
(n)thriftlessness, waste, wastefulnessthe trait of wasting resources“a life characterized by thriftlessness and waste”, “the wastefulness of missed opportunities”
(n)barren, waste, wastelandan uninhabited wilderness that is worthless for cultivation“the barrens of central Africa”, “the trackless wastes of the desert”
(n)waste, permissive waste(law) reduction in the value of an estate caused by act or neglect

Verbs

(v)waste, blow, squanderspend thoughtlessly; throw away“He wasted his inheritance on his insincere friends”, “You squandered the opportunity to get an advanced degree”
(v)wasteuse inefficiently or inappropriately“waste heat”, “waste a joke on an unappreciative audience”
(v)waste, run offrun off as waste“The water wastes back into the ocean”
(v)neutralize, neutralise, liquidate, waste, knock off, do inget rid of (someone who may be a threat) by killing“The mafia liquidated the informer”, “the double agent was neutralized”
(v)consume, squander, waste, warespend extravagantly“waste not, want not”
(v)pine away, waste, languishlose vigor, health, or flesh, as through grief“After her husband died, she just pined away”
(v)waste, emaciate, maceratecause to grow thin or weak“The treatment emaciated him”
(v)lay waste to, waste, devastate, desolate, ravage, scourgecause extensive destruction or ruin utterly“The enemy lay waste to the countryside after the invasion”
(v)waste, rotbecome physically weaker“Political prisoners are wasting away in many prisons all over the world”
(v)get rid of, remove, wastedispose of“Get rid of these old shoes!”, “The company got rid of all the dead wood”, “We waste the dirty water by channeling it into the sewer”

Adjectives

(s)godforsaken, waste, wildlocated in a dismal or remote area; desolate“a desert island”, “a godforsaken wilderness crossroads”, “a wild stretch of land”, “waste places”