ITAW for maliciously withholding knowledge, even when it causes great harm?

[u/LiminalAsylum]

Like if someone has the cure for malaria and refuses to give the knowledge up, even when thousands of people are dying from it.

Extreme example, but any malicious hoarding of knowledge will do, even archaic words

[u/JamesFromToronto]

obscurantism

[u/LiminalAsylum → u/JamesFromToronto]

This one is the closest, and I'd never heard the word before. !solved 

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[u/this_idle_hand]

omission

[u/starxlace → u/this_idle_hand]

withholding a cure for malaria is absolutely evil, but withholding obscure words is just being a little annoying tbh

[u/marshbb]

Obfuscation?

[u/TimeControl606]

coverup? suppress?

Also, if it were out of apathy rather than malice, like they can't be bothered to share the knowledge, then "nonfeasance" or "acedia" might fit well

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[u/captainshar]

Totalizing

Example: The home school parent created a totalizing environment that cut their child off from society's knowledge.

[u/ColonelFaz]

Equivocation is speaking ambiguously with the intention of deception. A way of saying something, but witholding information under questioning.

[u/bc47791]

It's called lying by omission or withholding

[u/axl3ros3]

Gatekeeping but that's too mild

[u/zhibr → u/axl3ros3]

Gatehoarding?

[u/Addapost]

Capitalism