Definition

1. Adjective:
   • Favoring one person or side over another; biased or partial: Describes a situation, account, or decision that unfairly supports one party, perspective, or argument.
   • Involving only one part or side; unilateral: Describes an action, process, or condition that affects, involves, or is undertaken by only one side.
   • Not equal or balanced; lacking reciprocity: Describes a relationship, contest, or agreement where one side has a significant advantage or bears all the responsibility.
   • Having only one side usable or visible; not reversible: Describes a material, like fabric, that has a distinct right and wrong side.

Examples of Usage

• Adjective (Biased/Partial):
  • The newspaper article presented a one-sided view of the conflict, ignoring the other party's grievances.
  • The referee was accused of making one-sided calls throughout the match.
• Adjective (Unilateral):
  • The company's management made a one-sided decision to change the policy without consulting the employees.
  • The paralysis was one-sided, affecting only his left arm and leg.
• Adjective (Unequal/Unbalanced):
  • It was a one-sided conversation where he did all the talking.
  • The debate turned out to be a one-sided victory for the more experienced team.
• Adjective (Not Reversible):
  • This is a one-sided satin; the shiny side is meant to be the visible one.

Advanced Usage

• "to be one-sided": To be unfairly biased or unbalanced.
  • The treaty negotiations were one-sided, heavily favoring the larger country.
• "one-sidedness" (noun form): The quality or state of being one-sided.
  • The one-sidedness of the report undermined its credibility.

Variants and Related Words

• Unilateral (adj): Undertaken or done by only one side. (e.g., a declaration).
• Partial (adj): Favoring one side in a way that is unfair. (e.g., a judge).
• Biased (adj): Unfairly prejudiced for or against someone or something. (e.g., a opinion).
• Asymmetrical (adj): Having parts that fail to correspond to one another in shape, size, or arrangement; lacking symmetry. (This can relate to the "unbalanced" sense).

Synonyms

• Prejudiced: Having a preconceived opinion that is not based on reason.
• Slanted: Presenting information from a particular angle, especially a biased one.
• Lopsided: With one side lower or smaller than the other; uneven.
• Nonreciprocal: Not given, felt, or done in return.

Antonyms

• Impartial: Treating all rivals or disputants equally.
• Balanced: Keeping or showing a balance; not biased.
• Bilateral: Involving two parties, especially countries.
• Reciprocal: Given, felt, or done in return.
• Equitable: Fair and impartial.

Related Idioms and Phrases

• A one-sided affair: An event or contest that is completely dominated by one participant or side.
  • The football match was a one-sided affair, ending 7-0.
• To see only one side of the coin: To consider only one aspect of a situation or argument (similar in meaning to having a one-sided perspective).
  • You're seeing only one side of the coin; you need to understand their position too.

Adjective

1. favoring one person or side over another
   • a biased account of the trial
   • a decision that was partial to the defendant
2. involving only one part or side
   • unilateral paralysis
   • a unilateral decision
3. not reversible or capable of having either side out