The antonym is a term from Greek origin which expresses an opposite or contrary idea. Examples: chiaroscuro, black/white, etc.The antonyms for advance fixing, are also known as antonyms grammatical, by use of morphemes (prefix), most commonly used prefixes that express opposition or denial are: an, suede, anti, against, des, dis, in, ex, pre.Examples: alphabet- an alphabet (without instruction), diluviano- before diluviano, social- anti social, light- against light, walk- des walk, remember- dis Member, legal- i legal, coherent- in consistent, bring- ex bring, natal- pre native. Generally, the prefix in is used for adjectives and des for verbs.