advantageous (to somebody) good or useful in a particular situation synonym beneficial A free trade agreement would be advantageous to both countries. opposite disadvantageousExtra examples Lower fares make it advantageous to travel in winter. Membership of the union could prove advantageous. The new tax system is advantageous to higher-rate taxpayers. This plan could be advantageous for people on low incomes. This trade arrangement could be mutually advantageous, You may find it advantageous to wait a few weeks before replying. A young woman in those days was expected to make an advantageous marriage. An agreement would be advantageous to both sides. Having a higher social status would not have been advantageous for everyone. He believes it would be advantageous to accept the deal. The farming community were in a particularly advantageous position.