Antonyms of adj hardline

1 sense of hardline

Sense 1
hard-line, hardline -- (firm and uncompromising; "a hard-line policy")

INDIRECT (VIA uncompromising) -> compromising, conciliatory, flexible -- (making or willing to make concessions; "loneliness tore through him...whenever he thought of...even the compromising Louis du Tillet")

Similarity of adj hardline

1 sense of hardline

Sense 1
hard-line, hardline -- (firm and uncompromising; "a hard-line policy")
       => uncompromising (vs. compromising), sturdy, inflexible -- (not making concessions; "took an uncompromising stance in the peace talks"; "uncompromising honesty")