By a natural language definition, you’d be right. But by D&D’s definitions, where chaotic seems to mean not caring about the rules, rather than being actively opposed to rules, chaos is just more extreme neutrality.
No, not by natural language. By D&D definitions it's not more neutral than neutral. Below are some of the definitions.
5e: CN: creatures
follow their whims, holding their personal freedom above all else.
N: is the alignment of those w ho prefer to
steer clear of moral questions and don’t take sides, doing what seems best at the time.
Whims are chaotic and impulsive, not neutral in any way. Steering clear of moral questions and not taking any sides, even chaotic and impulsive ones is more neutral.
3e: CN: chaotic neutral character follows his whims. He
is an individualist first and last. He values his own liberty but doesn’t strive to protect others’ freedom.
He avoids authority, resents restrictions, and challenges traditions. A chaotic neutral character does not intentionally disrupt organizations as part of a campaign of anarchy. To do so, he would have to be motivated either by good (and a desire to liberate others) or evil (and a desire to make those different from himself suffer). A
chaotic neutral character may be unpredictable, but his behavior is not totally random.
N: A neutral character does what seems to be a good idea. She
doesn’t feel strongly one way or the other when it comes to good vs. evil or law vs. chaos. Most neutral characters
exhibit a lack of conviction or bias rather than a commitment to neutrality. Such a character thinks of good as better than evil—after all, she would rather have good neighbors and rulers than evil ones. Still, she’s not personally committed to upholding good in any abstract or universal way.
Again, CN is more dedicated to an idea, in this case individualism and the challenge against restriction, traditions and authority, something a neutral character doesn't do, because neutral is more neutral.
The prior editions are the same. At no point has any edition which had both CN and N as alignments, had CN as more neutral than neutral.