A hasty generalization means somewhat more than a mere generalization in the common context. The 'hasty' element is a description of a major negative, referring to lack of comprehension of the subject, not just generalizing. In conversational use it refers to ignorance, lack of judgment, and/or lack of sufficient thought. The descriptor is used to underpin counters to the statements made in a hasty generalization. In literature or written, hasty generalizations are own goals, damaging the content values and undercutting the intent of the writing.
Examples of Hasty Generalization: