If anything, most people think “blimp” when they hear the word “dirigible”. But the word is actually quite old, long before there were hot air balloons or helium or hydrogen filled flying vessels. It’s original meaning is “something steerable”. So anything that can be guided by someone is technically “dirigible”.
Based on that knowledge, I have chosen to create the word indirigible, for which I assert the meaning of “self-guiding”, not steerable from outside. It’s something I think we all should be – by all means, learn from what’s around you, but apply your own values and reasoning to the the knowledge you gain. We need to take responsibility for ourselves. That’s what indirigible means to me.