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perpendicular

adjective

/ˌpɜːrpənˈdɪkjələr/

Meaning

At an angle of 90 degrees to a given line, plane, or surface.

The ladder was placed perpendicular to the ground for safety.

upright, vertical, orthogonal, right-angled

parallel, slanted, inclined

perpendicular line, perpendicular angle, perpendicular wall

causing trouble, difficulties, or discomfort; awkward; troublesome

small in size or amount; insufficient; barely adequate

feeling exhausted; in need of sleep or rest

in exactly the same words; word for word; literal

Not restrained or restricted; free in behavior or expression.

based on observation or experience rather than theory