Quincunx
In plain words
Two planets at an awkward distance — not opposite, not square, just not fitting. Both things are true and neither will make room.
In the tradition's terms
150° apart, sharing neither element nor mode nor gender: the two have no common term to negotiate on.
In depth
Separation 150°, also called the inconjunct. Signs that are disjunct in every dignity, which is why it reads as adjustment rather than conflict — there is nothing to argue about, only to accommodate.