effectual vs legal

effectual and legal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
effectual	No	Yes	No	No
legal	No	Yes	No	No

As adjectives, effectual and legal are synonyms defined as:

Other synonyms of effectual include sound.

effectual (adjective)	legal (adjective)
producing or capable of producing an intended result or having a striking effect	established by or founded upon law or official or accepted rules
having legal efficacy or force	of or relating to jurisprudence
	relating to or characteristic of the profession of law
	allowed by official rules
	having legal efficacy or force