pushover

noun

Etymology: A deverbal from push over. First use appears c. 1891 in the Galveston Daily News.

1. Someone who is easily swayed or influenced to change their mind or comply.

   “I'm a pushover when it comes to buying new kitchen gadgets.”

   ““His [Helmut Newton's] women are strong and powerful, definitely not pushovers,” he says.”

2. Someone who is easy to push around and to take advantage of; someone who lets themselves be picked on or bullied without defending or standing up for themselves.
3. Something that is easy to do or accomplish; an easy task.