Scare up means to obtain something with difficulty or to make something happen through great effort. Its antonyms include words like yield, give, surrender, fail, miss, and lose. Yield means to deliver or give up something willingly or unwillingly. Give means to present or donate something willingly. Surrender means to give up or abandon something to an enemy or authority. Fail means to be unsuccessful in achieving a goal or objective. Miss means to fail to hit or reach something. Lose means to suffer a defeat or to misplace something. These antonyms have the opposite meaning to the word scare up, indicating a much smoother or effortless process.