The antonyms for the phrase "more reserve" can include a variety of words and phrases that describe the opposite of being reserved or holding back. Some possible antonyms could be "outgoing," "expressive," "open," "uninhibited," "unreserved," "spontaneous," "forthright," "demonstrative," or "garrulous." These words all suggest a personality type that is more outgoing and extroverted than someone who is reserved and guarded. Being the opposite of "more reserve" can often mean being more comfortable with sharing thoughts and feelings, taking risks, and expressing oneself freely in social situations. Overall, the antonyms for "more reserve" represent a more extroverted, outgoing and free spirited personality type.