Abate and worsen are the two directions a trouble can take on its own. To abate is for it to subside — the fever breaking, the storm easing, no one's doing. To worsen is for it to deepen — the fever climbing, the weather closing in, equally capable of happening unaided. The same agentless grammar, pointed opposite ways.
Most opposites in this family disagree about agency; these two agree — neither needs a hand — and disagree only about direction. Abate, through Old French abattre, 'to beat down', is the force spending itself: rain, pain, anger, interest all abate when nothing sustains them. Worsen, plain English on 'worse', is the slide continuing: conditions worsen when nothing checks them. Between them they describe every untreated fever and unattended crisis: left entirely alone, it must do one or the other.
abate
To abate is to die down — to become weaker, gentler, or less severe over time. Storms abate, pain abates, public anger abates. The word almost always describes the force of something unpleasant or overwhelming draining away rather than the thing disappearing all at once: it is still there, but its intensity is easing off. Unlike diminish, which tracks a shrinking in size or number, abate is about a violent or unwelcome thing losing its grip. It can also be used transitively — to reduce something deliberately, as in measures taken to abate noise pollution.
worsen
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.
| abate | worsen | |
|---|---|---|
| Meaning | subside, lose force | become worse, deepen |
| Direction | the trouble breaks | the trouble climbs |
| Agency | none needed | none needed |
| Register | somewhat formal | neutral |
| Typical subjects | storms, fevers, anger, interest | weather, health, shortages, relations |
| Example | The fever abated at dawn. | The fever worsened overnight. |
Two skies, no hands in either. Over the bus shelter, the rain tires until its last drop fits in a palm — the trouble breaking on its own: abate. Over the picnic, cloud stacks on cloud until the rain drives — the trouble climbing on its own: worsen. When no one intervenes, every fever, storm, and crisis is choosing between exactly these two verbs.
abate
- iThe cough abated after a few days' rest.
- iiTensions on the border abated through the spring.
- iiiThe seas abated and the ferries resumed.
worsen
- iThe cough worsened into bronchitis.
- iiTensions worsened after the incursion.
- iiiVisibility worsened as the fog thickened.
The pair is the agentless fork: the same subject — fever, storm, tension, shortage — takes either verb, and the sentence needs no culprit for either. Register separates them slightly (abate leans formal; worsen is everyman's), and each has a transitive sideline (abate noise pollution; worsen the problem) — but their shared home is the drift of things left alone.