Definitions

rudimentary

[roo-duh-men-tuh-ree, -tree] / ˌru dəˈmɛn tə ri, -tri /

ADJECTIVE

basic, fundamental

Synonyms

STRONGEST

elemental elementary embryonic primitive simple

WEAK

abecedarian basal beginning early immature initial introductory larval nuts-and-bolts primary simplest uncompleted undeveloped vestigial

Antonyms

STRONGEST

complex complicated difficult intricate sophisticated

WEAK

additional advanced derivative developed extra nonessential

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Around a dozen are close to completion while others sit with the logos of the shipping companies still visible on the outside, rudimentary windows cut out of the sides.

From BBC • May 22, 2026

Teams built their rosters while relying on rudimentary statistics like batting average and runs batted in for hitters and win-loss record for pitchers.

From The Wall Street Journal • Apr. 16, 2026

The other was being recruited by Arnold Beckman, a Caltech alum, a renowned inventor of scientific instruments, and scientific advisor to L.A.’s rudimentary air pollution control operation.

From Los Angeles Times • Mar. 26, 2026

Anyone with even rudimentary knowledge of recent history would have known this was likely.

From Salon • Mar. 15, 2026

It’s a simple notion, almost rudimentary, but accomplishing this in an actual game can be quite difficult.

From "Endgame" by Frank Brady

Vocabulary lists containing rudimentary

Essential Academic Vocabulary for High School Students, List 4

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ACT Vocabulary List

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