Simple Definition of disciplinarian

from our Learner's Dictionary

disciplinarian

noun

ˌdɪsəpləˈnerijən

plural disciplinarians

: a person who is very strict about punishing bad behavior : a person who uses discipline as a way of making sure that rules or orders are obeyed

The school's principal is a strict/rigid disciplinarian.

Cite this Entry

Style

“Disciplinarian.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/disciplinarian. Accessed 20 Jun. 2026.

Copy Citation

Popular in Grammar & Usage

'Canceled' or 'cancelled'?

5 Verbal Slip Ups and Language Mistakes

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

The Difference Between 'i.e.' and 'e.g.'

Popular in Wordplay

Simple Definition of disciplinarian

disciplinarian

noun

Cite this Entry

More from Merriam-Webster on disciplinarian

More from Merriam-Webster

Word of the Day

longueur

Popular in Grammar & Usage

'Canceled' or 'cancelled'?

5 Verbal Slip Ups and Language Mistakes

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

The Difference Between 'i.e.' and 'e.g.'

Popular in Wordplay

One-Word Oxymorons: Bittersweet, Spendthrift, and More

8 Obscure Words for Sleepy Times

Cattywampus, Taradiddle, and More Funny-Sounding Words

The Words of the Week - Jun 19

12 Lovely and Unusual Words for the Natural World

Popular

'Canceled' or 'cancelled'?

One-Word Oxymorons: Bittersweet, Spendthrift, and More

8 Obscure Words for Sleepy Times

Games & Quizzes