BOSSILY
Scrabble letter values: B3O1S1S1I1L1Y4 = 12
Definition
BOSSILY is the adverb form of BOSSY.
adjective BOSSY: offensively self-assured or given to exercising usually unwarranted power.
Synonyms of BOSSY: autocratic, dominating, high-and-mighty, magisterial, peremptory