untrendy

As adjectives the difference between square and untrendy

is that square is shaped like a square (the polygon) while untrendy is not trendy; unfashionable, square.

As a noun square

is a polygon with four sides of equal length and four angles of 90 degrees; a regular quadrilateral whose angles are all 90 degrees.

As a verb square

is to adjust so as to align with or place at a right angle to something else.

As adjectives the difference between unfashionable and untrendy

is that unfashionable is not fashionable while untrendy is not trendy; unfashionable, square.

As adjectives the difference between trendy and untrendy

is that trendy is of, or in accordance with the latest trend, fashion or hype while untrendy is not trendy; unfashionable, square.

As a noun trendy

is a trendy person.