English Reference

Word

resistant

Phoneticsre·sis·tant, stress on the second syllable

US/ɹiˈzɪstənt/

UK/ɹɪsˈɪstənt/

Definitions

01not affected by something

B2 · Upper Intermediate Science

adj. not easily damaged or affected by something like water, heat, or chemicals.

adj. having the ability to withstand the effects of a specific physical or chemical agent without being damaged or altered.

“This watch is water-resistant, so you can wear it while washing your hands.”

“The new strain of bacteria proved highly resistant to standard antibiotics, forcing the medical team to explore alternative treatment protocols.”

Usage

often followed by the preposition 'to'.

02opposing change

B2 · Upper Intermediate

adj. refusing to accept or agree with a new idea, plan, or change.

adj. offering opposition to a process, idea, or change; showing a psychological or social unwillingness to comply.

“Some older employees were resistant to the new computer system at first.”

“The local community remained resistant to the proposed development, citing concerns over increased traffic and the loss of green space.”

Usage

usually followed by the preposition 'to'.

03not affected by outliers

C1 · Advanced Mathematics Technical

adj. describes a result that does not change much even if there are a few very different numbers in a group.

adj. describing a statistical measure that is not significantly affected by outliers or extreme values in a sample.

“The median is a resistant measure because one very high number won't change it much.”

“Statisticians prefer resistant estimators when dealing with datasets that may contain significant measurement errors or extreme outliers.”

Usage

used primarily in the context of data analysis and statistics.

Synonyms

Antonyms

04a person who resists

C1 · Advanced Countable noun Formal

n. someone who fights against a government or an invading army, often in secret.

n. a person who belongs to a resistance movement or actively opposes an established authority or occupying force.

“The young resistant risked his life to deliver secret messages during the war.”

“Historical records identify several key resistants who coordinated the underground network during the final months of the occupation.”

Synonyms

Real-World Examples

“Even so, many Western societies remain strongly resistant to entomophagy, or eating insects, despite the fact that hundreds of millions of people around the world already include insects in their diets.”
ScienceDaily 27 Aug 2026
“Because SynthID pixels are spread throughout the image, they’re also resistant to cropping… at least to a point.”
Ars Technica 29 Jul 2026

Etymology

From French résistant; equivalent to resist + -ant.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

ADJECTIVE

resistant(B2)

Domain

Statistics

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference