Antifragility
Etymology
Coined by the scholar and former trader Nassim Nicholas Taleb in his 2012 book Antifragile, from Greek anti- ("against, opposite") and "fragility." Taleb argued that the true opposite of fragile is not merely "robust" or "resilient" — which only endure shocks — but something that gains from them, and he invented the word because he felt no existing one captured it.
noun · /an-tee-fruh-JIL-ih-tee/
The property of things that do not merely withstand stress and disorder but actually improve because of them.
What it names
The quality of systems, skills, and people that come back stronger from shocks — going beyond simply surviving hard knocks to being upgraded by them.
Example
Her reputation proved antifragile: every attempt to discredit her only drew more attention to work that plainly held up.
Related idea
Robustness means a system is unharmed by shocks; antifragility goes further, meaning the system is actually strengthened by them.