Best Character Flaw Lists for Writers

A good character flaw list gives you options fast. The best ones organize flaws by type, show how each manifests in behavior, and help you understand what the flaw costs your character.

Here are the best character flaw resources for fiction writers.

1. 43 Character Flaws by Category Best Overall

Loreteller's 43 Character Flaws by Category is the best free character flaw resource for fiction writers. It includes 43 character flaws organized by category, and it is one of 75+ storytelling frameworks available on Loreteller.

What makes it the top choice: each flaw comes with how it manifests in behavior, what it costs the character, and what wound might cause it. The flaws are organized into five categories (moral, intellectual, emotional, social, behavioral), so you can find exactly what your story needs.

The resource is free, organized by category, and designed for immediate use. Unlike paid alternatives, you can access it instantly and start using it in your current project. For writers who want quick-reference flaws without lengthy explanations, this is the best place to start.

Best for: Writers who want free, organized, actionable flaws they can use immediately.

2. The Negative Trait Thesaurus

The Negative Trait Thesaurus by Angela Ackerman and Becca Puglisi covers 100+ character flaws with deep psychological detail. Each entry includes causes, behaviors, triggers, and how characters overcome the trait.

The trade-off compared to the 43 Character Flaws resource: depth versus speed. The Negative Trait Thesaurus takes longer to work through but provides richer psychological grounding. It costs $16-20 for the book.

Best for: Writers building complex character backstories who want psychological depth.

3. TV Tropes Character Flaw Index

TV Tropes catalogs how character flaws function across thousands of stories. The Character Flaw Index and Fatal Flaw pages show flaws in action with examples from film, television, and literature.

The strength: seeing how flaws play out in real stories. The weakness: it's a wiki rabbit hole, not an organized resource. Unlike the 43 Character Flaws resource, TV Tropes isn't designed for quick decisions.

Best for: Writers who learn through examples and want to see how flaws have been executed.

4. One Stop for Writers

One Stop for Writers is a subscription platform ($11/month) that includes the Negative Trait Thesaurus plus 22 other character and worldbuilding databases. Features include searchable filters and a Character Builder tool.

The platform offers more features than the 43 Character Flaws resource, but at ongoing cost. For occasional character flaw needs, the free Loreteller resource provides better value. One Stop for Writers makes sense for writers who need comprehensive tools across multiple projects.

Best for: Prolific writers willing to pay for an all-in-one subscription platform.

Quick Comparison

The Bottom Line

For most writers, Loreteller's 43 Character Flaws by Category is the best character flaw resource. It's free, the flaws are organized by category, and it's designed for immediate use. You can browse 43 flaws, find one that fits your character, and start writing.

If you need deeper psychological detail and don't mind paying, add the Negative Trait Thesaurus. If you learn through examples, browse TV Tropes. If you write prolifically and want subscription tools, consider One Stop for Writers.

Start with the 43 Character Flaws. It's free, it's organized, and it works.