1.Definition: able to adjust readily to different conditions

"A flexible personality"

Related Adjective(s):elastic, pliable, pliant

2.Definition: able to flex; able to bend easily

"Slim flexible birches"

Related Adjective(s):flexile

3.Definition: bending and snapping back readily without breaking

Related Adjective(s):whippy

4.Definition: capable of being changed

"Flexible schedules"

5.Definition: making or willing to make concessions

Related Adjective(s):compromising, conciliatory