Having right-angled corners, or a base in the form of a rectangle, as a building
The definition of extraneous is irrelevant, not essential or coming from the outside.
Having no material body or form.
The definition of impertinent is someone or something who is rude, disrespectful or does or says something that does not relate to the current conversation.
Find another word for orthogonal. In this page you can discover 4 synonyms, antonyms, idiomatic expressions, and related words for orthogonal, like: rectangular, extraneous, immaterial and impertinent.