The antonyms for "were sociable with" are aloof, distant, unfriendly, cold, reserved, detached, unsocial, introverted, shy, and reclusive. These words describe individuals who are not interested in interacting with others or forming close relationships. Such people prefer their own company and avoid social gatherings. They may often sit alone in a corner at a party or maintain minimal contact with colleagues and acquaintances. These antisocial behaviors can have a negative impact on one's personal and professional life, making it difficult to establish meaningful relationships and connections. Therefore, being sociable and engaging with others is essential for personal growth and success.