Third-person singular simple present indicative form of worsen

(transitive) To make worse; to impair. / (intransitive) To become worse; to get worse. / (transitive, obsolete) To get the better of; to worst.

present participle of worsen

A worse situation; an aggravation or deterioration

simple past tense and past participle of worsen

plural of worsening

plural of worsener

One who or that which worsens (things), makes things worse. / (especially in medicine) One who or that which worsens (internally), becomes worse, deteriorates in condition.