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.

"Anyone with even the most rudimentary knowledge of leasehold knows that outright and immediate abolition of circa five million English and Welsh leases is almost certainly impossible."

From BBC • Apr. 29, 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

As it hit the pitch, Catan leapt into action and started performing rudimentary CPR, pumping the bird's ribcage.

From Barron's • Feb. 26, 2026

Beyond these rudimentary details, nothing was known about the structure or function of DNA and RNA.

From "The Gene" by Siddhartha Mukherjee

Vocabulary lists containing rudimentary

Essential Academic Vocabulary for High School Students, List 4

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

ACT Vocabulary List

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

I'm New Here...

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!