proficuous

CIDE DICTIONARY

proficuous, a. [L. proficuus.].

 Profitable; advantageous; useful.  Harvey.  [1913 Webster]

ROGET THESAURUS

proficuous

Utility

N utility, usefulness, efficacy, efficiency, adequacy, service, use, stead, avail, help, applicability, subservience, function, value, worth, money's worth, productiveness, cui bono, utilization, step in the right direction, common weal, commonwealth public good, public interest, utilitarianism, useful, of use, serviceable, proficuous, good for, subservient, conducive, subsidiary, advantageous, profitable, gainful, remunerative, worth one's salt, valuable, prolific, adequate, efficient, efficacious, effective, effectual, expedient, applicable, available, ready, handy, at hand, tangible, commodious, adaptable, of all work, usefully, pro bono publico.