Having a free heart, in various senses; frank, open, unreserved; not burdened with anxiety, guilt, or suspicion; acting on the spontaneous impulse of the heart; generous, liberal.
Origin
Late Middle English; earliest use found in John Trevisa (c1342–?1402), translator. From free + hearted.
Definition of free-hearted in US English:
free-hearted
adjectiveˌfriːˈhɑːtɪd
Having a free heart, in various senses; frank, open, unreserved; not burdened with anxiety, guilt, or suspicion; acting on the spontaneous impulse of the heart; generous, liberal.
Origin
Late Middle English; earliest use found in John Trevisa (c1342–?1402), translator. From free + hearted.