Antithetical

adjective
/ˌæntɪˈθɛtɪkəl/
Directly and unequivocally opposed; constituting or marked by direct contrast, such that two things are mutually incompatible in nature or principle.

✍️ Usage in a UPSC answer

A surveillance architecture that monitors citizens without statutory safeguards or judicial oversight is antithetical to the constitutional vision of a liberal democracy, in which the dignity and privacy of the individual are not concessions of the state but inviolable guarantees against it.

Synonyms

opposedcontradictorycontraryincompatibleirreconcilableconflicting

Antonyms

consistentcompatiblecongruousharmonious

🌱 Word Family

antithesis (n), antitheses (n pl), antithetical (adj), antithetically (adv), antithetic (adj)

🔡 Root

Greek anti- (against) + tithenai (to put, place) → antithetikos (setting in opposition); via Late Latin.

📜 Etymology

From Greek antithetikos "setting in opposition" (from antithetos "opposed"), via Late Latin antithesis, from Greek anti- "against" + tithenai "to put, place"; entered English in the late 1500s.

🧠 Memory Hook

Break it into ANTI + THESIS: an "anti-thesis" is the exact counter-claim that stands directly against a thesis — so anything "antithetical" is dead set against, the polar opposite.

🎯 How This Word Works in UPSC Writing

Directly opposed in nature. It is a strong word, which is exactly why it must be earned: saying two things are antithetical claims they cannot coexist, not merely that they are in tension. In GS4 and GS2 much of the interesting analysis lies in showing that values often thought antithetical, such as efficiency and equity, can be reconciled at the margin.

⚖️ Don’t Confuse It With

Antithetical means fundamentally and directly opposed. Contrary means opposed but not necessarily irreconcilable. Incompatible means unable to coexist in practice. In tension is the mildest and often the most accurate, describing a pull in different directions without full opposition.

🇮🇳 Hindi Meaning

विपरीत (viparīt) or प्रतिकूल (pratikūl).

Common Questions

What does antithetical mean?
Directly and fundamentally opposed to something in nature or principle.
Is antithetical the same as different?
No. Antithetical claims direct opposition, not mere difference, and is a much stronger assertion.

📝 Seen in UPSC Question Papers

Real UPSC previous-year questions whose text uses “Antithetical” — proof this word earns its place on your list.

Relevant across:GS4 · Ethics, Integrity & Aptitude

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Resources
Ujiyari Ujiyari — Current Affairs