What does effectually mean?
Effectually is a formal adverb meaning so as to achieve the desired result — in other words, effectively or successfully. It may also carry a second, now largely literary sense of 'in actual fact,' describing something as it truly is rather than as it appears. The word derives from 'effectual,' itself rooted in the Latin efficere, meaning to accomplish or bring about, and it entered English in the sixteenth century alongside a family of related forms such as 'effect' and 'effectuate.' In earlier centuries, writers used 'effectually' freely: a law might effectually prohibit a practice, or a remedy might effectually cure a disease. Today, however, it has been almost entirely displaced by its shorter cousin 'effectively,' which dominates both speech and writing. Encountering 'effectually' now signals formal register, historical fiction, or legal prose, where its slightly weighty cadence lends gravity. Though rare, it remains fully understood and grammatically standard — useful when a writer wishes to sound deliberate, precise, and faintly antique at once.
In such a manner as to achieve the intended result; effectively.
"The blockade effectually cut off all supplies to the garrison."
Now chiefly formal or literary; 'effectively' is the normal modern equivalent.
In actual fact; really, as distinct from in appearance.
"He was, effectually, the ruler of the province though he held no official title."
This sense is now archaic or confined to literary prose.
Before 'effectively' took over everyday English, writers like Jane Austen reached for 'effectually' — a word that once did the same job but sounds like it stepped out of a Victorian drawing room.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of effectually
Effectually comes from 'effectual,' which English borrowed from Old French and ultimately from the Latin efficere, meaning to accomplish or bring about, formed from ex- (out) plus facere (to make or do). The adverb took the common '-ly' ending and appeared in English by the sixteenth century, sharing its root with cognates such as 'effective' and 'effectuate.' Its fortunes declined from the eighteenth century onward as 'effectively' became the dominant form, leaving 'effectually' largely to formal and literary contexts today.
Related word forms
How effectually is actually used
Formal and somewhat old-fashioned; 'effectively' is strongly preferred in contemporary usage. The second sense ('in actual fact') survives mainly in older literature. Not to be confused with 'effortlessly,' with which it shares no meaning.
Easily confused with effectually
'Effectively' means producing a desired result and is the standard modern choice, while 'effectually' is an older, more formal synonym that can also mean 'in actual fact.'
'Affectively' relates to emotion or feeling, whereas 'effectually' concerns producing a practical result.