pattern - What is a Chaotic Word™?

_{This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.}

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If a word conforms to a special rule, I call it a Chaotic Word™.

You can use the following examples below to find the rule:

And, if you want to analyze, here is a CSV version:

CHAOTIC™, NON-CHAOTIC™
CLUE, HINT
THEN, NOW
MONKEY, CHIMP
BUG, ANT
SHOE, BOOT
WET, DRY

THIRTY, FORTY
ANTILOPES, AEGILOPS
SKILL, EFFORT
ZOMBIE, GHOST
VOICE, ACCENT
SURGERY, BIOPSY
COMPLETE, ALMOST
SUCCESS, ACCESS

Answer

A Non-Chaotic word is one in which

all the letters appear in alphabetical order.

and a Chaotic word

doesn't have the letters appear in order.

example:

Chaotic - Clue: E comes after U,

Non-Chaotic - Hint: All the letters are in alphabetical order