frustrating [Adjective] + rather [Adverb]

Strength Strength Dispersion
A:
5
CHISQ:
7.63
AWT:
21,401,469
TTEST:
-4.84
G2:
8.27
FAWT:
2.54
MI:
-1.66
LOGLOG:
-3.86
JD:
0.48
MI3:
2.98
DICE:
0.05
RANGE: