aggressive

Synonyms: advancing antipathetic assailing attacking barbaric bellicose combative contentious destructive disruptive disturbing encroaching hawkish intruding intrusive invading martial militant offensive pugnacious quarrelsome rapacious threatening warlike

Antonyms: calm easy-going laid-back

Synonyms: assertory bold brassy cheeky cocky come on domineering dynamic energetic enterprising flip forceful fresh get up and go go after hard sell imperious masterful militant nervy pushing pushy sassy shooting from the hip smart smart alecky strenuous tough vigorous zealous

Antonyms: complaisant laid-back