Thesaurus.com
Dictionary.com
Showing results for irregular.
Definitions

irregular

[ih-reg-yuh-ler] / ɪˈrɛg yə lər /
ADJECTIVE
random, variable
Synonyms
STRONGEST
capricious erratic intermittent jerky sporadic uneven unreliable
STRONG
aberrant eccentric faltering shifting weaving
WEAK
aimless casual changeable designless desultory disconnected discontinuous fitful fluctuating fragmentary haphazard hit-or-miss inconstant indiscriminate infrequent nonuniform occasional out of order patchy purposeless recurrent shaky spasmodic uncertain unconsidered unmethodical unpunctual unsettled unsteady unsystematic up and down
Antonyms
STRONGEST
constant continuous dependable regular reliable smooth steady
STRONG
normal
WEAK
common conventional even flat level methodical standard systematic usual
ADJECTIVE
abnormal, peculiar
Synonyms
STRONGEST
capricious improper inappropriate strange unorthodox unusual
STRONG
aberrant deviant eccentric singular
WEAK
anomalous atypical different disorderly divergent exceptional extraordinary immoderate inordinate odd off-key quirky unconventional unique unnatural unofficial unsuitable
Antonyms
STRONGEST
appropriate common familiar fitting normal proper regular standard suitable usual
STRONG
ordinary
WEAK
conventional even flat level methodical smooth systematic
ADJECTIVE
bumpy, uneven
Synonyms
STRONGEST
asymmetrical craggy elliptical jagged lumpy unbalanced
STRONG
aberrant bent eccentric rough variable wobbly
WEAK
amorphous broken cockeyed crooked devious disproportionate elliptic hilly lopsided meandering not uniform notched off-balance off-center out of proportion pitted protuberant scarred serrate serrated unaligned unequal unsymmetrical zigzagged
Antonyms
STRONGEST
even smooth
STRONG
normal regular
WEAK
common conventional flat level methodical standard systematic usual

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.

The candies themselves looked like tiny, dusty potatoes: irregular little lumps of sweet cream with bits of coconut rolled in cinnamon, dusty and warm-smelling, tucked into a plastic tray.

From Salon • Mar. 17, 2026

But local rights group Foro Penal has documented only 670 releases so far, criticizing the regime’s lack of transparency, irregular pace and arbitrary process.

From The Wall Street Journal • Mar. 10, 2026

Karapetyan described these irregular patterns as "mouse bites."

From Science Daily • Mar. 5, 2026

"Those who can leave legally do so. Those who can't are pushed into irregular migration, even if the journey carries extreme risks," he told AFP.

From Barron's • Feb. 18, 2026

Chimes rang* and then I heard faint and irregular footsteps tapping on a parquet floor, coming toward the door.

From "Confessions of a Murder Suspect" by James Patterson

Vocabulary lists containing irregular

TEKS ELAR Academic Vocabulary List (5th-7th grades)

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!

List 8

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!

Keystone Exams: English Composition Glossary

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!