Adjectives That Start with OP

Find 113 valid English adjectives starting with OP, including Open, Operating, Opening, Opponent, Opposed, Operational and Optional. Check definitions and usage below, or visit our adjective grammar guide to check adjective order and comparative rules.

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Starts with OP
1 words
op
Starts with OPA5 words
opaque
opalescent
opaline
opaled
opacous
Starts with OPE24 words
open
operating
opening
operational
operative
operatic
operable
ope
openhearted
openable
operant
openhanded
openmouthed
opencast
openwork
openside
opercular
operagoing
operationalist
operose
operationist
operculate
operculated
operationalistic
Starts with OPG1 words
opgefok
Starts with OPH23 words
ophthalmic
ophthalmological
ophidian
ophthalmologic
ophthalmoscopic
ophidiophobic
ophiolitic
ophite
ophiomorphous
ophiophagous
ophiurid
ophitic
ophthalmoplegic
ophiuroid
ophiuran
ophiological
ophiolatrous
ophiomorphic
ophiologic
ophiomorph
ophthalmometrical
ophthalmophorous
ophioglossaceous
Starts with OPI17 words
opioid
opiate
opinionated
opinioned
opinionative
opiated
opisthobranch
opisthotonic
opinable
opisthocoelous
opisthopulmonate
opisthobranchiate
opisthognathous
opisthographic
opisthographical
opisthoglossal
opisthocoelian
Starts with OPP22 words
opposite
opponent
opposed
opposing
oppressed
oppressive
opportunistic
opportune
opportunist
oppositional
opposable
oppositionist
opprobrious
oppositionless
oppositive
oppidan
opposeless
oppugnant
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
Starts with OPU2 words
opulent
opuscular

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