Hello :)

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When creating characters, it's all too easy to envision the most perfect people, especially when it comes to creating love interests. Even our loveable morally grey characters are mostly perfect, if only they would stop killing...

So, here are a list of some flaws (based on personality, not appearance) to help round out your characters. While it's nice to be good at everything, it's abnormal. No one is perfect, and your characters will be much more relatable if you knock them down a bit.

Please note, none of these are (specifically) mental disorders, as I don't consider those a character flaw.

The Good (aka little flaw):

Absent-minded, aimless, argumentative, audacious, awkward, blunt, bold, boring, capricious, childish, clumsy, competitive, complainer, cowardly, critical directionally-challenged, dubious, finicky, fixated, flake, flirty, foolish, gossipy, gruff, gullible, hedonistic, humourless, hypocritical, idealist, idiotic, ignorant, illiterate, immature, impatient, impetuous, impulsive, incompetent, inconsiderate, indecisive, indifferent, indomitable, irrational, lazy, lustful, materialistic, meddlesome, meek, mischievious, nagging, naive, nervous, nosey, obnoxious, overambitious, overconfident, overemotional, overprotective, overzealous, passive-aggressive, paranoid, peevish, perfectionist, pessimist, pest, predicatable, pretencious, prideful, rebellious, renege, rigorous, sarcastic, skeptic, seducer, selfish, self-righteous, shallow, slacker, solemn, spacey, spoild, squeamish, stubborn, supersticious, sycophant, tactless, tease, tempermental, tenacious, theatrical, thoughtless, timid, unpredictable, unsupportive, vain, workaholic

The Bad (aka big flaw):

Addiction, adulterous, aloof, anxious, apathetic, arrogant, belittling, belligerent, bigmouth, bitter, bully, callous, deceptive, dependant, deranged, dishonest, disloyal, disrespectful, egotistical, envious, erratic, exploitive, fanatical, fickle, fierce (at the extreme), gluttonous, greedy, harasser, hubris, impious, infamy, intolerant, judgemental, lewd, liar, meglomaniac, morally grey, narcissistic, negligent, obsequious, obsessive, offensive, prejudiced, quixotic, reckless, rigid, self-martyr, self-righteous, short-tempered, spiteful, squanderer, stingy, unethical, unforgiving, untrustworthy

The Ugly (aka cross the street when you see this person):

Abusive, bigot, controlling, cruel, explosive, immoral, inhumane, intolerant, machiavellian, manipulative, murderous, neglectful, oppressive, racist, remorseless, possessive, self-destructive, threatening, treacherous, vengeful, vindictive, violent

The seven chief features of ego: self-deprecation, self-destruction, martyrdom, stubbornness, greed, arrogance and impatience.

Some of these may not even be considered flaws, and some may jump from one category to the next. It's all about how you present these flaws in your characters.

Dimple & Ritsu mess up and try to recover, taken from the second Mob Psycho 100 stage play (context)