Typical stylistic errors include:
- Wordiness/Verbosity (using too many words)
- Using an inappropriate register
- Poor diction (word choice)
- Inappropriate overuse of the passive voice, or in some contexts, using the active voice
- In highly formal English, use of the first person.
- Sentences that are too long/too short
- Inappropriate paragraphing
- Failure to grade language to the audience level.
- Inappropriate use of comparison (metaphor/simile)
Most style guides are prescriptive