insurmountable [Adjective] + barrier [Noun]

Strength Strength Dispersion
A:
4
CHISQ:
236.08
AWT:
19,549,184
TTEST:
1.97
G2:
33.51
FAWT:
2.78
MI:
5.93
LOGLOG:
11.86
JD:
0.51
MI3:
9.93
DICE:
0.26
RANGE: