Resilience is an individual’s ability to recover from or stay well in the face of adversity. In a work setting, this translates into an employee having ‘the capacity to thrive, rather than just survive, in high stress environments’. So, resilience helps employees adapt, cope, and respond positively to stressors in the workplace.
Resilience can also be viewed at an organisational level, where it includes not only the individuals within the organisation, but also the processes and culture those individuals work with/in. Organisational resilience looks at how well the organisation can ‘weather the storm’ or adapt to the challenges it faces. (Source: https://www.cipd.co.uk/knowledge/culture/well-being/supporting-employee-resilience-hr-guide#gref)
Further reading: “Employee resilience: an evidence review”: https://www.cipd.co.uk/knowledge/culture/well-being/evidence-resilience)

Read: Understanding the Importance of Resilience as a Graduate Skill