Non- is used in front of nouns to form nouns which refer to situations where a particular action has not or will not take place. He was disqualified from the council for non-attendance. Both countries agreed on non-interference in each other's internal affairs. Used in the sense of no or none, to show lack of or failure to perform; or in the sense of not, to negate the meaning of the word to which it is prefixed. Breaking news, weather, sports and information for Billings, Miles City and eastern Montana. KULR8 in Yellowstone County, Montana. The meaning of NON- is not : other than : reverse of : absence of. How to use non- in a sentence. Find similar words to non- using the buttons below. Non- definition: Not. NON- definition: 1. used to add the meaning not or the opposite of to adjectives and nouns: 2. used to add the…. Learn more. Browse our site for information, to report a crime, get a copy of your police report, check crime statistics and much more! There are no published events in current month. NON- meaning: 1. used to add the meaning not or the opposite of to adjectives and nouns: 2. used to add the…. Learn more. Breaking news, weather, traffic, sports and information for eastern Montana, including Billings, Miles City, Hardin and more. See examples of non- used in a sentence.