Eke out is defined as to obtain with great difficulty or to make something last longer than it normally would. The antonyms for eke out could include to waste, to squander, to exhaust, to overspend, to lavish, to splurge, to consume or to deplete. These words are all associated with the concept of using or spending something quickly and recklessly, rather than making the most of what one has. Therefore, the opposite of eking out a resource would involve using it all at once, without much concern for the future. It is essential to choose the right words while communicating to avoid any confusion or misunderstandings.