The word un-communicative refers to someone who is unwilling or unable to communicate effectively with others. In contrast, the antonyms for this word are communicative, talkative, expressive, outgoing, sociable, and extroverted. Communicative means being able to express oneself easily and clearly, while talkative indicates someone who talks a lot or easily. An expressive person is capable of conveying their thoughts and feelings through words, gestures, or facial expressions. Outgoing and sociable refer to an individual who is friendly and enjoys interacting with others. Lastly, an extroverted person is outgoing and assertive, and tends to derive energy from socializing. In summary, these antonyms describe personalities that enjoy and excel in social interactions.