Similar word to selfasserting:

audacious, bold, brazenfaced, cheeky, cocksure, cocky, effervescent, flip, foolhardy, forward, hasty, headlong, heedless, hotheaded, ill-advised, impertinent, impetuous, impolitic, impudent, incautious, inconsiderate, indiscreet, insolent, madcap, maladroit, nervy, precipitate, presuming, presumptuous, pushing, rash, reckless, rude, self-asserting, self-assertive, tactless, thoughtless, undiplomatic, untactful, uppity, vivacious