It made him sound like a softie, he said, a mischaracterization that he wanted to correct.
He is a kind of softie—all alive on one side of his brain, and a noodle on the other.
After that we dropped the 'softie,' and re-named him 'Amen-who-shied-that-boot?'
"You know well enough that Merriwell is no softie," returned Harry, rather warmly.
Somewhat less than extreme; moderated; slightly ameliorated: The fashion magazine is soft-core pornography/ a softcore picture of a bare-chested woman
Something that is not extreme, esp a sexually arousing but not carnally explicit movie, magazine, etc: She doesn't care for X-rated, but enjoys a little soft-core now and then
[1966+; based on hard-core]