worsen

From Wiktionary

Pronunciation[change]

Verb[change]

Plain form
worsen

Third-person singular
worsens

Past tense
worsened

Past participle
worsened

Present participle
worsening

  1. (transitive) If A worsens B, A makes B worse.
    The global warming has worsened the weather.
  2. (intransitive) If something worsens, it becomes worse.
    The weather has worsened.