Bĕn'e-fĭ'cial1, a.
(fish'al), a. [L. Lat. beneficialis, Fr. bénéficial, bénéfĭciel.]
Sense 1. Conferring benefits; useful; profitable; helpful; contributing to a valuable end; — followed by to. “The war which would have been most beneficial to us.” Swift.
Sense 2. (Law.) Receiving, or entitled to have or receive, advantage, use, or benefit; as, the beneficial owner of an estate. Kent.
Sense 3. Kind; generous. [Obs.] “A beneficial foe.” B. Jonson.
Synonyms—Advantageous; useful; profitable; helpful.