willing to respect or accept behavior or opinions different from one's own; open to new ideas.
2.
relating to or denoting a political and social philosophy that promotes individual rights, civil liberties, democracy, and free enterprise.
Similar:
tolerant
unprejudiced
unbigoted
broad-minded
open-minded
enlightened
forbearing
permissive
free
free and easy
easygoing
laissez-faire
libertarian
latitudinarian
unbiased
impartial
nonpartisan
indulgent
lenient
lax
soft
Opposite:
narrow-minded
bigoted
noun
1.
a supporter of policies that are socially progressive and promote social welfare.
"she dissented from the decision, joined by the court's liberals"
2.
a supporter of a political and social philosophy that promotes individual rights, civil liberties, democracy, and free enterprise.