in a way that was not expected; her brother showed up at the wedding out of the blue
[ Syn: out of the blue , out of the blue , out of the blue , out of the blue , out of the blue , out of the blue , out of the blue , out of the blue ]
without advance planning; they met accidentally
[ Syn: by chance , by chance , by chance , by chance , accidentally , accidentally , accidentally , accidentally , circumstantially , circumstantially , circumstantially , circumstantially , by chance , by chance , by chance , by chance , accidentally , accidentally , accidentally , accidentally , circumstantially , circumstantially , circumstantially , circumstantially , by chance , by chance , by chance , by chance , accidentally , accidentally , accidentally , accidentally , circumstantially , circumstantially , circumstantially , circumstantially , by chance , by chance , by chance , by chance , accidentally , accidentally , accidentally , accidentally , circumstantially , circumstantially , circumstantially , circumstantially ]