1. The quality of being difficult to accomplish or to deal with: Fighting and surviving the terrible fires in California in 2017 and 2020 have been the worst formidabilities the state has ever experienced before.
2. The caliber of something that is large and impressive in size or amount: As a computer technician, James has proven that he has mastered the formidabilities involved with setting up many efficient electronic devices for storing and processing data systems with several big companies, as well as training the individuals who must work with them.