Linelike is an adjective that describes something resembling a straight line or having the shape of a line. There are several synonyms for this word that can be used to convey similar meanings. Some of the synonyms for linelike include linear, rectilinear, extended, elongated, stretched, and in a line. Linear means arranged in a straight line or relating to a line, and rectilinear means consisting of straight lines. The word extended suggests that something is stretched out and elongated, while stretched conveys the meaning of being pulled taut. In a line is a more straightforward synonym that describes something that exists or is arranged in a line.