What is another word for buckling under?
Pronunciation: [bˈʌklɪŋ ˈʌndə] (IPA) 
When someone is "buckling under," they are struggling to handle pressure or a difficult situation. There are various synonyms that can be used in place of "buckling under," such as:
1. Cracking under pressure
2. Collapsing under the weight of something
3. Succumbing to stress
4. Yielding to pressure
5. Giving in to the demands
6. Bowing down to authority
7. Falling apart
8. Breaking down
9. Losing one's composure
10. Caving in
Using any of these synonyms will help to convey the idea that someone is having a hard time coping with a challenge and may be close to their breaking point.
