ovenless
Without an oven, or without the use of an oven.

ovenproof
Suitable for use in an oven, without being damaged by the heat.

overabsorbed
simple past and past participle of overabsorb

overabstemious
Excessively abstemious.

overabstract
Excessively abstract.

overabundant
excessively abundant.

overaccommodative
excessively accommodative

overaccumulated
simple past and past participle of overaccumulate

overaccurate
Excessively accurate.

overacid
Excessively acid.

overacidic
Excessively acidic.

overacquired
acquired to excess

overactive
Excessively active.

overactuated
Excessively actuated (such as to cause damage).

overaddicted
Excessively addicted.

overadditive
More than additive

overadjectived
Having too many adjectives.

overadored
Given too much adoration.

overadrenalized
Adrenalized to excess.

overadvantaged
Having excessive advantages.

overadventurous
Excessively adventurous.

overaggravated
Overly aggravated.

overaggressive
Overly aggressive; of a personality, action or behavior having excessive aggression.

overalert
Excessively alert.

overalled
Wearing overalls

overallocated
allocated in excess

overambitious
Excessively ambitious.

overanalytical
Tending to overanalyze.

overangelic
Excessively angelic.

overanticoagulated
Excessively anticoagulated

overanxious
Excessively anxious or nervous.

overappreciated
Excessively appreciated.

overapprehensive
Excessively apprehensive.

overapt
Excessively apt or prone to do something.

overardent
Excessively ardent.

overargumentative
Excessively argumentative.

overarm
Throwing while having the hand above the elbow

overaroused
Excessively aroused

overartificial
Excessively artificial.

overassertive
Too assertive.

overassured
Excessively assured.

overated
Misspelling of overrated.

overattached
Excessively attached.

overattentive
Excessively attentive

overattenuated
Excessively attenuated

overavaricious
Excessively avaricious.

overbank
Describing sediments deposited on a floodplain from suspensions in floodwaters

overbanked
Furnished with too many banks (financial institutions).
Of a rollercoaster turn or curve: such that the track tilts 90 degrees or more.

overbarred
Marked with an overbar.

overbarren
Excessively barren.

overbashful
Excessively bashful.

overbattered
Coated in too much batter.

overbed
Above a bed (in various senses).

overbeetling
Protruding, jutting, overhanging.

overbejeweled
Excessively bejeweled.

overbejewelled
Adorned with an excessive amount of jewellery.

overberg
beyond a mountain

overbitter
Excessively bitter.

overblack
Excessively black.

overblessed
Blessed more than one deserves.

overblind
Excessively blind.

overblithe
Excessively blithe.

overboastful
Excessively boastful.

overboisterous
Excessively boisterous.

overbold
Too bold; impertinent or overreaching.

overbookish
Excessively bookish.

overbossy
Excessively bossy.

overbought
Of a stock or commodity market condition: where there has been significant trading bidding up prices to higher levels, levels which seem overextended or excessive on a short-term basis.

overbounteous
Excessively bounteous.

overbowering
overarching so as to form a bower or shelter

overbrained
Excessively brainy.

overbranched
Excessively branched

overbrave
Excessively brave.

overbreathed
Breathed too much, or by too many people.

overbridging
Forming a bridge over something else; overarching.

overbridgings
plural of overbridging

overbrief
Excessively brief.

overbright
Too bright.

overbrilliant
Excessively brilliant.

overbrimful
Overbrimming; overfull; full to overflowing.

overbroad
Too broad.

overbrutal
Excessively brutal.

overbuilt
simple past and past participle of overbuild

overbulky
Excessively bulky.

overbullish
Excessively bullish.

overbumptious
Excessively bumptious.

overbuoyant
Excessively buoyant.

overburdened
Excessively burdened

overburdensome
Too burdensome.

overbust
Above the bust.

overbusy
Excessively busy; officious.

overcaffeinated
Having ingested too much caffeine, especially in the form of coffee.

overcalcified
Excessively calcified.

overcanny
Excessively canny.

overcanvassed
Alternative form of over-canvassed.

overcapable
Too capable.

overcapitalised
Alternative form of overcapitalized.

overcapitalized
simple past and past participle of overcapitalize

overcaptious
Excessively captious.

overcareful
Excessively careful.

overcareless
Excessively careless.

overcasual
Excessively casual.

overcautious
Excessively cautious.

overcentralised
Alternative form of overcentralized.

overcentralized
Overly centralized or concentrated in authority.

overcerebral
Excessively cerebral.

overchance
Occurring more than expected by mere chance or probability.

overchances
plural of overchance

overcharged
simple past and past participle of overcharge

overcharitable
Excessively charitable.

overchatty
Excessively chatty.

overcheap
Excessively cheap

overcheesed
Prepared or filled with too much cheese.

overchildish
Excessively childish.

overchlorinated
Containing an excess of chlorine.

overchurched
Having too many churches.

overcircumspect
Excessively circumspect.

overcivil
Excessively civil.

overcivilized
too civilized

overclad
Wearing more clothing than is necessary.

overclean
To clean to an excessive degree.

overcleanly
Excessively cleanly.

overclerked
Having more clerks than is needed for the amount of work to be done.

overclever
Excessively clever.

overclipped
Clipped to excess.

overclockable
Suitable for overclocking.

overclothed
Wearing too many clothes.

overclustered
Excessively clustered

overcoated
Wearing an overcoat.

overcoatless
Without an overcoat.

overcolored
Rendered too colourful; with an excess of color.
exaggerated

overcoloured
Alternative form of overcolored.

overcomable
Alternative form of overcomeable.

overcomeable
able to be overcome; surmountable.

overcomfortable
Excessively comfortable.

overcommital
Alternative spelling of overcommittal.

overcommittal
overcommitment

overcommon
Excessively common; very frequently encountered.

overcompassionate
Showing too much compassion.

overcompensative
Excessively compensative

overcompensatory
Tending to overcompensate; providing excessive compensation.

overcompetitive
Excessively competitive.

overcomplacent
Excessively complacent.

overcomplete
Describing a frame (in linear algebra) having a set of functions more than a basis

overcomplex
Excessively complex.

overcompliant
Excessively compliant.

overcomplicated
excessively complicated

overcomplimentary
Excessively complimentary.

overcomposed
Having undergone too much composition or arrangement; excessively posed, to the point of seeming artificial.

overcompressed
simple past and past participle of overcompress

overconcentrated
Excessively concentrated.

overconcerned
Excessively concerned.

overcondensed
Excessively condensed.

overconditioned
Excessively conditioned

overconfident
Too confident.
Too confident.

overconfiding
Too confiding.

overconfluent
Excessively confluent

overconnected
Excessively connected; having too many connections.

overconscientious
Excessively conscientious.

overconscious
Excessively conscious.

overconservative
Excessively conservative.

overconsiderate
Excessively considerate.

overconsolidated
consolidated to an excessive degree
consolidated to a greater extent than that due to the overburden

overcontact
Describing a pair of binary stars having a common convective envelope

overcontented
Excessively contented.

overcontiguous
Synonym of overlapping.

overconvenient
Excessively convenient.

overconvergent
Overly convergent

overcooled
Excessively cooled

overcopious
Excessively copious.

overcosseted
Excessively cosseted.

overcostly
Too costly.

overcoupled
Modified by overcoupling

overcourageous
Excessively courageous.

overcourteous
Excessively courteous.

overcovetous
Excessively covetous.

overcoy
Excessively coy.

overcreative
Excessively creative.