Antiviral

adjective; also noun (countable)

/ˌæntɪˈvaɪərəl/

Describing any agent — drug, protein, or therapy — that inhibits the replication or pathogenic action of a virus without necessarily killing it outright, by targeting stages of the viral life cycle such as attachment, uncoating, replication, or release. In UPSC/GS3 context, antivirals gained salience during COVID-19 (Remdesivir, Molnupiravir, Paxlovid) and are central to discussions on AMR policy, pandemic preparedness, and vaccine-antiviral complementarity. India's SARS-CoV-2 antiviral Molnupiravir was produced domestically under voluntary licences granted by Merck.

✍️ Usage in a UPSC answer

The development of India's domestically manufactured antiviral portfolio — from Molnupiravir to interferon-alpha nasal drops — underscored the strategic imperative of a self-reliant pharmaceutical ecosystem capable of responding to future pandemic threats.

Synonyms

virucidalantiviral agentantiretroviralvirostaticviral inhibitor

Antonyms

viralpro-viralvirus-permissive

🌱 Word Family

antiviral (adj/n), virus (n), viral (adj), virology (n), virologist (n), virulence (n)

🔡 Root

Greek anti- = against; Latin virus = poison, slime (used in virology since 1892 to denote submicroscopic infectious agents)

📜 Etymology

Formed in English in the mid-20th century from the Greek prefix anti- ('against') and viral, the adjective from Latin virus ('poison'). The word virus was used in classical Latin to mean a slimy liquid or poison; it was repurposed in modern biology from the 1890s. The compound antiviral emerged in pharmacological literature of the 1950s as the first synthetic antivirals (e.g., idoxuridine, 1959) were developed.

🧠 Memory Hook

ANTI + VIRAL: think of a goalkeeper (anti) stopping a shot (viral attack). The 'anti' shield blocks the virus — same prefix used in antidote, antibiotic, anticlimax. Once you own anti- = against, the word family is yours.

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