Synonyms of opposition
1
: an act of setting opposite or over against : the condition of being so set
He spoke in opposition to the new law.
2
: hostile or contrary action or condition
offered strong opposition to the advance of the enemy
3
a
: something that opposes
specifically : a body of persons opposing something
Each candidate is focused on raising more money than the opposition.
b
often Opposition : a political party opposing and prepared to replace the party in power
The opposition is likely to win the upcoming election.
4
: a configuration (see configuration sense 1b) in which one celestial (see celestial entry 1 sense 2) body is opposite another (such as the sun) in the sky or in which the elongation (see elongation sense 1) is near or equal to 180 degrees
5
logic : the relation between two propositions having the same subject and predicate but differing in quantity or quality or both
The propositions "Every box is empty" and "Some box is not empty" are in contradictory opposition.

Examples of opposition in a Sentence

They're going ahead with the plans despite strong opposition from residents. The nominee faces strong opposition in the Senate. The proposed change has met with opposition from the town's business leaders. Rebels have so far offered little opposition to advancing troops. Each candidate is focused on raising more money than the opposition. The coach advised her team not to underestimate the opposition. The leader of the Opposition criticized the prime minister for his comments.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
His previous spell on the Bernabeu bench was filled with arguments and feuds, with the Portuguese angrily taking on referees, journalists, opposition coaches and even his own players. Dermot Corrigan, New York Times, 14 Aug. 2026 When children are experiencing poor educational outcomes, at what point does opposition to an alternative become an obstacle to giving families another opportunity? Chicago Tribune, 14 Aug. 2026 His policies also fueled deep opposition, first among wealthy Cubans, many of whom fled to the United States, and later among those who opposed the Communist Party’s monopoly on political power. ABC News, 13 Aug. 2026 But surprisingly, that anger has metastasized into actual antisemitism — not merely opposition to Israel’s government, but blaming Jewish Americans and contributing to antisemitic incidents, with physical assaults reaching record levels. Andrew Cuomo, New York Daily News, 13 Aug. 2026 See All Example Sentences for opposition

Word History

Etymology

Middle English opposicioun "location opposite something, contrary opinion, opposition of celestial bodies," borrowed from Middle French & Latin; Middle French oposicion (Anglo-French opposicion "objection, questioning"), borrowed from Medieval Latin oppositiōn-, oppositiō, going back to Late Latin, "contradiction, antithesis" (loan translation of Greek antíthesis), from Latin opposi-, variant stem of oppōnere "to place (over or against), place as an obstacle, set in opposition to, argue in reply" + -tiōn-, -tiō, suffix of verbal action — more at oppose

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of opposition was in the 14th century

Browse Nearby Words

Cite this Entry

“Opposition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/opposition. Accessed 16 Aug. 2026.

Kids Definition

opposition

noun
1
: the state of being opposite
2
: the action of resisting
offer opposition to a plan
the opposition of two forces
3
a
: a group of persons (as a team or an enemy force) that oppose someone or something
b
often capitalized : a political party opposing the party in power

More from Merriam-Webster on opposition

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster