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worsen

/ˈwɜːrsən//ˈwɜːsən/·verb
to become worse, or to make something worse
Fig. 1 — I watch someone picnicking under a full sun.
01Definition

To worsen is the plainest way English has of saying that bad is heading toward worse — and, tellingly, it needs no one to blame. Weather worsens, a patient's condition worsens, a shortage worsens: the verb works intransitively, for things that slide downhill by themselves, which sets it apart from aggravate, where an outside action does the damage. It also works transitively — a badly timed policy can worsen the very problem it was meant to cure. Neutral in register, it fits everywhere its formal cousins exacerbate and deteriorate would sound heavy.

02In use
  • iThe weather worsened overnight, and by morning the roads were impassable.
  • iiThe new tariffs only worsened the shortage of imported parts.
  • iiiHer eyesight worsened so gradually that she hardly noticed the change.
03Collocations
  • the weather worsened
  • the situation worsened
  • worsening conditions
  • worsen the problem
  • steadily worsen
  • worsen over time

Family worse (adjective) · worsening (adjective, noun)

04Relations

=deteriorate, decline, aggravate, exacerbate, degenerate

≠improve, ease, abate, alleviate

05Compared
PairThe difference
worsen vs abateleft alone it breaks and settles → abate; left alone it climbs and deepens → worsen.
worsen vs aggravatean outside hand works it worse (and takes the blame) → aggravate; it gets worse, with or without anyone's help → worsen.
worsen vs alleviatesomeone lightens the suffering → alleviate; it gets worse — with or without a culprit → worsen.
worsen vs easethe trouble lightens (by itself or by design) → ease; it deepens (by itself or by someone's doing) → worsen.
worsen vs exacerbatea named factor intensifies the problem (formal) → exacerbate; it simply gets worse, cause optional → worsen.

Also compared with lessen, mitigate, relieve

06TOEFL & IELTS

A workhorse of trend language: in Writing Task 1, figures, air quality and congestion all 'worsen steadily' or 'worsen sharply', and the attributive form 'worsening' ('a worsening shortage', 'worsening conditions') instantly lifts a sentence. Because it is neutral and works both ways — things worsen on their own, or something worsens them — it is the safe default when aggravate (which wants an agent) or exacerbate (which wants formality) would overreach. Built on 'worse', so no new spelling to learn; just do not write 'worsen' when you mean the adjective: conditions GET worse, or conditions worsen.

07Asked
What is the difference between worsen and deteriorate?
Speed and cause. Worsen is the plain, neutral word — something simply gets worse, quickly or slowly, and often with no one to blame ('the weather worsened'). Deteriorate is more formal and stresses gradual decline through wear or decay ('the building deteriorated over decades'). Worsen can be sudden; deteriorate implies a slow slide. The scene above is worsen exactly — a sky souring from sun to rain with nobody pushing it.
Is 'worsen' a real word?
Yes — worsen is standard, correct English, built from 'worse' with the -en ending that turns adjectives into verbs, the same pattern as harden, soften and widen. Some speakers doubt it because 'worse' already feels like a change-word, but worsen is fully accepted and useful precisely because it is a single neutral verb where 'get worse' takes three words.
When do you use 'worsen' rather than 'get worse'?
They mean the same, but worsen is tighter and more formal — ideal for academic and report writing, where 'conditions worsened' reads better than 'conditions got worse'. Keep one rule straight: worsen is the verb, worse the adjective. Conditions worsen, or conditions get worse — but never 'conditions worsen worse'. When the sentence needs a single verb of decline, worsen is the clean choice.
What does 'worsening' mean, and how is it used?
Worsening is the participle doing double duty. As an adjective it sits before a noun to mark a decline in progress — a worsening shortage, worsening conditions, a worsening crisis. As a noun it names the decline itself — 'a worsening of relations'. It is the form that most often lifts a sentence in Writing Task 1, turning a flat 'things got worse' into precise, examiner-friendly phrasing.