effectual
Concise Oxford English Dictionary © 2008 Oxford University Press:
effectual /ɪˈfɛktʃʊəl, -tjʊəl/
▶adjective
- 1 effective.
- 2 Law (of a legal document) valid or binding.
– derivatives
effectuality noun,
effectually adverb,
effectualness noun.
effectuality noun,
effectually adverb,
effectualness noun.
'effectual' also found in these Oxford entries:

