adversely

Adversely is an adverb used to describe something done in a way that causes harm, disadvantage, or an unfavorable outcome. It is often used to modify verbs related to effects, such as affect, impact, or influence.

Etymology and form: Adversely is derived from the adjective adverse, which comes from Latin adversus meaning turned toward, hostile. The suffix -ly turns the word into an adverb, indicating manner or degree.

Usage: In formal, technical, and policy-related writing, adversely is used to convey negative consequences. It commonly appears in phrases like adversely affect, adversely impact, or adversely influence. For example, a drought can adversely affect crop yields, or a policy change can adversely impact small businesses.

Common usage notes: While adversively has a similar meaning, adverse is used to describe the harmful nature of a condition or situation, whereas adversely specifies the manner in which something is affected. The term tends to appear in professional or academic contexts and is less common in everyday conversation. It is often paired with verbs that denote change or outcome, such as affect, influence, impact, or progress.

Related terms and contrasts: Adverse is the related adjective meaning harmful or unfavorable. Antonyms include favorable or beneficial, though the adverbs favorable to or beneficially are used in different constructions. Adversely is part of a broader set of terms used to discuss risk, health, economics, and environmental outcomes.

See also: adverse, adversity, adverse effects.