dichotomous

adjective

di·​chot·​o·​mous dī-ˈkä-tə-məs How to pronounce dichotomous (audio)
also də-
1
: dividing into two contradictory or contrasting parts or groups
2
: relating to, involving, or proceeding from dichotomy
the limitations of a dichotomous worldview
All forms of cultural evolution, language included, are devilishly intricate networks, not orderly systems of dichotomous branching.Stephen Jay Gould
… many pollsters provide only two possible answers to a question …, eliminating the central tendency and artificially reducing a spectrum of responses towards dichotomous poles.Jeffrey Sonnenfeld and Steven Tian
dichotomously adverb
dichotomousness noun

Examples of dichotomous in a Sentence

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.
These leaders make the options dichotomous when there is a variety to consider. Ryan Lahti, Forbes.com, 7 May 2025 The lilac’s blooms are dichotomous, both quietly delicate and also boisterous with a showstopping flair. Emily Leahy, Hartford Courant, 3 May 2026 These dichotomous experiences have shown me how court decisions affect victims, defendants and families. Nathaniel Percy, Daily News, 5 May 2026 To counter this dichotomous thinking, businesses can alleviate customer concerns through transparent privacy programs that build trust between the business, the customer and the tools used. Jodi Daniels, Forbes, 18 Mar. 2025 See All Example Sentences for dichotomous

Word History

Etymology

borrowed from Late Latin dichotomos, borrowed from Greek dichótomos "cut in half, divided equally," from dicho- dicho- + -tomos, adjective derivative from the base of témnein "to cut" — more at tome

First Known Use

1752, in the meaning defined at sense 1

Time Traveler
The first known use of dichotomous was in 1752

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Cite this Entry

“Dichotomous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dichotomous. Accessed 7 Jul. 2026.

Kids Definition

dichotomous

adjective
1
: dividing into two parts or groups
2
: relating to, involving, or resulting from dichotomy

Medical Definition

dichotomous

adjective
di·​chot·​o·​mous
dī-ˈkät-ə-məs also də-
: dividing into two parts
dichotomous branching
dichotomously adverb
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