Resilience

noun (uncountable)

/rɪˈzɪl.i.əns/

In ecology, the capacity of an ecosystem to absorb disturbance and reorganise while undergoing change so as to still retain essentially the same function, structure, identity, and feedbacks. Ecologist C.S. Holling (1973) distinguished engineering resilience (speed of return to equilibrium after disturbance) from ecological resilience (magnitude of disturbance absorbed before a regime shift). In UPSC GS3 and disaster management (GS3), resilience is central to the Sendai Framework for Disaster Risk Reduction (2015–2030), India's National Disaster Management Authority guidelines, and climate-smart agriculture discourse.

✍️ Usage in a UPSC answer

India's Coastal Regulation Zone notifications increasingly incorporate ecological resilience indicators — mangrove coverage, seagrass extent, and coral reef health — as proxies for a coastline's capacity to absorb cyclonic storm energy.

Synonyms

robustnessadaptive capacitybounce-back capacityelasticitydurability

Antonyms

fragilityvulnerabilitybrittlenesssusceptibility

🌱 Word Family

resilient (adjective), resiliently (adverb), resiliency (noun, variant), non-resilient (adjective), resilience thinking (noun phrase)

🔡 Root

Latin resilire = to spring back (re- = back + salire = to jump/leap)

📜 Etymology

From Latin resilire (to leap back, rebound), entering English in the early 17th century with the physical meaning of a material springing back to shape after deformation. The ecological and social-systems sense was introduced by C.S. Holling in his landmark 1973 paper in Annual Review of Ecology and Systematics, transforming the word's scientific register.

🧠 Memory Hook

RESILIENCE = RE + SALIRE (jump back). Think of a rubber ball jumping back (re-salire) when you drop it. An ecosystem with high resilience bounces back after a flood or fire; a fragile one stays flat.

📝 Seen in UPSC Question Papers

Prelims 2025 — Climate Change
Mains 2024 · GS3 · 15 marks — Disaster Management

Real UPSC previous-year questions whose text uses “Resilience” — proof this word earns its place on your list.

🌿 Environment & Ecology 📖 Seen in: Ecology Fundamentals — Ecosystems, Foo...

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