The word 'minor minus' is an unusual phrase and not typically used in English. However, there are many synonyms for both 'minor' and 'minus' that can be used depending on the context. For 'minor', synonyms include 'small', 'trivial', 'insignificant', 'petty' and 'unimportant'. For 'minus', synonyms include 'negative', 'less', 'reduced', 'diminished' and 'subtracted'. These words can be combined to convey a range of meanings, such as 'trivially reduced', 'petty negative', 'insignificantly subtracted', and so on. It is always important to consider the context in which the words are being used to determine the most appropriate synonym.