Capable of being proposed.

plural of proposement

plural of request for proposal

(business) A formal publicly released document outlining a need and inviting businesses to submit plans to fulfill that need.

plural of modest proposal

(idiomatic) An idea which is especially extreme, unorthodox or distasteful, often put forward in jest. / Used other than figuratively or idiomatically: see modest, proposal.

Alternative form of counterproposal

plural of counter-proposal

(transitive with to) To ask someone if they want to become one's spouse.

Things don't always work out as they were planned.