riant

形容词 riant:

1. showing or feeling mirth or pleasure or happiness
   同义词：laughing

ri.ant

adj.（形容词）
Cheerful; mirthful.
欢乐的，愉快的；欢笑的，高兴的

来源：
French [present participle of] rire [to laugh]
French [present participle of] rire [to laugh]
from Old French
from Old French
from Latin rodôre
from Latin rodôre