blus·ter·ing
ˈblə-st(ə-)riŋ
1
: blowing in stormy gusts
blustering winds
2
: speaking loudly and aggressively
a blustering bully
blusteringly
adverb
This rather prompted the question of why Apple had been so confident of its encryption powers. Was it merely naïve in its belief in its own technical competence? Blusteringly overconfident?
—Michael Wolff
blustering
2 of 2present participle of bluster entry 1
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Merriam-Webster unabridged



