Synonyms of 'prescriptive'
dictatorialDictionary, rigid, authoritarian
prescriptive attitudes to language on the part of teachers
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If you describe a person or an organization as authoritarian, you are critical of them controlling everything rather than letting people decide things for themselves.
There was a coup to restore authoritarian rule.
If you describe someone's behaviour as dictatorial, you do not like the fact that they tell people what to do in a forceful and unfair way.
his dictatorial management style
Thesaurus for prescriptive from the Collins English Thesaurus
A prescriptive approach to something involves telling people what they should do, rather than simply giving suggestions or describing what is done.