Aquarius and Cancer
Quincunx · Unlike on every count, so this match needs conscious adjustment.
Aquarius: Air · FixedCancer: Water · CardinalThought meets feeling: they learn to translate between reason and emotion.
To make this work, Aquarius should remember an instinct for what others need, and Cancer should remember vision for how things could be.


Love & romance
Aquarius loves originally, and Cancer loves tenderly. Thought meets feeling: they learn to translate between reason and emotion. In romance, Aquarius brings vision for how things could be and Cancer brings an instinct for what others need. Attraction is real but takes patience to translate.
Friendship
As friends, Aquarius and Cancer need time to find their rhythm, and become interesting precisely because they differ. One starts, the other sustains: a good division of labour.
Work
At work, Aquarius brings originality and Cancer brings nurturing. One starts, the other sustains: a good division of labour. Watch for aloofness and contrarianism on one side and moodiness and clinging to the past on the other.
Communication
Aquarius (Air) speaks originally while Cancer (Water) speaks tenderly. Name the difference out loud and it becomes a strength.
Sun-sign compatibility is a simplified view; a full comparison considers both complete birth charts.
