out–there 
/ˈaʊtˈðeɚ/ adjective
/ˈaʊtˈðeɚ/ adjective [more out–there; most out–there] US, informal : very strange or unusual : out of the ordinary
▪ out-there hairstyles ▪ Most of his ideas were really out-there.
▪ out-there hairstyles ▪ Most of his ideas were really out-there.
