Webster's Revised Unabridged Dictionary · 1913

Advantageous

Advantageous ({not transcribed}) , adjective

[French avantageux, from avantage.]

Being of advantage; conferring advantage; gainful; profitable; useful; beneficial; as, an advantageous position; trade is advantageous to a nation.
Advabtageous comparison with any other country. — Prescott
You see... of what use a good reputation is, and how swift and advantageous a harbinger it is, wherever one goes. — Chesterfield