Adverb
in an effective manner
Source: WordNetthese are real problems that can be dealt with most effectively by rational discussion Source: Internet
For Fichte, God should be conceived primarily in moral terms: "The living and efficaciously acting moral order is itself God. Source: Internet
TFG forces alleged to have failed to efficaciously warn civilians in combat zones, impeded relief efforts, plundered property, in some instances engaged in murder and violence, and mistreated detainees during mass arrests. Source: Internet