"Sheer desperation" means extreme and absolute hopelessness or despair.
Sentences with «sheer desperation»
This is one of those recipe born out of sheer desperation. (whereismyspoon.co)
On this with practical parenting advice [link] you'll find a multitude of typical challenging child situations that cause many parents to pull out their own hair in sheer desperation. (positive-parenting-ally.com)
I gave in 1/3 out of love, 2/3 out of sheer desperation and need for survival. (attachmentparenting.org)