Wordnet 3.0
NOUN (2)
1.
(psychology) stress at which a person breaks down or a situation becomes crucial;
2.
the degree of tension or stress at which something breaks;
WordNet (r) 3.0 (2006):
breaking point
n 1: (psychology) stress at which a person breaks down or a
situation becomes crucial
2: the degree of tension or stress at which something breaks
Moby Thesaurus II by Grady Ward, 1.0:
19 Moby Thesaurus words for "breaking point":
bloat, bloating, distension, extreme tension, inflation,
overdistension, overdrawing, overexpansion, overextension,
overstrain, overstraining, overstretching, snapping point, strain,
straining, stretch, stretching, swelling, tension