Worst Synastry Aspects in Astrology

Astrology can highlight beautiful chemistry—but it can also reveal why some relationships feel heavy, draining, or impossible. Certain synastry aspects make emotional closeness difficult and create cycles of misunderstanding, control, or pain.

Below are some of the most challenging synastry aspects — not to say love can’t work with them, but they require awareness, maturity, and effort from both people.

Saturn-Moon conjunction is one of the hardest aspects to handle in synastry.

The Moon person wants comfort, emotional closeness, and safety.

The Saturn person, consciously or not, restricts, criticizes, or blocks those emotions.

The Moon may feel judged, never “good enough,” or emotionally abandoned. Saturn feels responsible but burdened, as if they must “teach” or control the Moon. Love can still exist here—but it often feels like duty rather than warmth. Unless both people are emotionally mature, this aspect can create loneliness within the relationship.

This is raw, tense energy. Both partners may love each other but constantly argue, compete, or try to dominate. Fights can turn personal very quickly. Sexual chemistry might be strong, but so is irritation.

One partner (usually Venus) wants affection, romance, and ease. Saturn, however, brings delays, guilt, or rejection. The Venus person feels unloved or like they must earn love. The Saturn person may feel overwhelmed or emotionally shut down. Venus square Saturn in synastry is a hard one.

These two people speak different emotional languages. One says something meaningful, the other hears criticism. Conversations go in circles. Misunderstandings are constant, and both feel unheard.

5. Pluto Square Sun / Moon / Venus – Power Games

Pluto brings obsession, jealousy, control, and deep emotional transformation. It can be magnetic but toxic. The Pluto person may become manipulative or intense; the other person may feel consumed, exposed, or emotionally trapped.