Adjectives Starting with OP and Containing I

Browse 82 valid English adjectives starting with OP and containing I, from Operating, Opening, Operational, Optional, Optimistic, Optical and Opposing to rarer terms. Check definitions and spelling below, or visit our adjective grammar guide to check adjective order and comparative rules.

Refine list...
JUMP:
Sort:
Group:
Case:
View:
JUMP TO:
Select any word to view available definitions & photosSelect any word for details
Starts with OPA1 words
opaline
Starts with OPE10 words
operating
opening
operational
operative
operatic
openside
operagoing
operationalist
operationist
operationalistic
Starts with OPH22 words
ophthalmic
ophthalmological
ophidian
ophthalmologic
ophthalmoscopic
ophidiophobic
ophiolitic
ophite
ophiomorphous
ophiophagous
ophiurid
ophitic
ophthalmoplegic
ophiuroid
ophiuran
ophiological
ophiolatrous
ophiomorphic
ophiologic
ophiomorph
ophthalmometrical
ophioglossaceous
Starts with OPI17 words
opioid
opiate
opinionated
opinioned
opinionative
opiated
opisthobranch
opisthotonic
opinable
opisthocoelous
opisthopulmonate
opisthobranchiate
opisthognathous
opisthographic
opisthographical
opisthoglossal
opisthocoelian
Starts with OPP15 words
opposite
opposing
oppressive
opportunistic
opportunist
oppositional
oppositionist
opprobrious
oppositionless
oppositive
oppidan
oppilative
oppositipetalous
oppositisepalous
oppilant
Starts with OPS2 words
opsonic
opsomaniac
Starts with OPT15 words
optional
optimistic
optical
optimal
optimum
optic
optoelectronic
optometric
optative
optronic
optimific
optoacoustic
optokinetic
optimate
optometrical

•Browse Adjectives by Letter (A to Z)

Select a starting letter to browse adjectives
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.