Adjectives

(a)flexiblecapable of being changed“flexible schedules”
(a)flexible, flexileable to flex; able to bend easily“slim flexible birches”
(a)compromising, conciliatory, flexiblemaking or willing to make concessions“loneliness tore through him...whenever he thought of...even the compromising Louis du Tillet”
(s)elastic, flexible, pliable, pliantable to adjust readily to different conditions“a flexible personality”, “an elastic clause in a contract”, “a pliable person”
(s)flexible, whippybending and snapping back readily without breaking