What does disastrously mean?
"Disastrously" is an adverb describing actions, events, or situations that unfold with catastrophic consequences — plans that fail disastrously collapse utterly rather than merely underperforming. It derives from "disastrous," which traces through French and Italian to the Latin "astrum," meaning star; in older thinking, disasters were calamities brought about by unfavorable astrological influences, giving the word a vivid historical resonance it retains only faintly today. In modern usage it appears most often with verbs such as "fail," "go wrong," and "end," signaling total or near-total ruin. It also serves as an intensifier before adjectives, as in "disastrously low turnout," meaning dangerously or severely inadequate. Strongly negative in connotation, the word suits both formal reporting and everyday speech, making it a precise and forceful choice whenever mere "badly" understates the scale of a failure.
In a manner that results in or is likely to result in great damage, failure, or suffering.
"The invasion plan went disastrously awry within hours of the landing."
To an extremely bad, severe, or inadequate degree; used as an intensifier.
"Supplies of clean drinking water were disastrously scarce after the flood."
The word traces back to the Latin 'astrum' (star): to the ancients, disaster was literally bad luck written in the stars — so calling something disastrously wrong once implied the heavens themselves had turned against it.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of disastrously
"Disastrously" derives from "disastrous," which entered English from French "désastreux" (or directly modeled on Italian "disastroso") in the late sixteenth century, combined with the adverbial suffix "-ly." The root noun "disaster" comes from Italian "disastro," formed from the pejorative prefix "dis-" plus "astro" (star), from Latin "astrum." The underlying idea was that misfortune resulted from adverse planetary positions, reflecting Renaissance astrology. Cognates include French "désastreux" and Italian "disastroso."
Related word forms
How disastrously is actually used
Standard in both formal and informal register; common in journalism and historical writing. The intensifying sense ('disastrously low') is frequent before adjectives describing insufficient quantities or poor conditions.
Easily confused with disastrously
Despite a similar rhythm and ending, 'desperately' means with great urgency or despair, whereas 'disastrously' means in a way that produces disaster or ruin.