ominous
Of or pertaining to an omen or to omens; being or exhibiting an omen; significant.
Specifically, giving indication of a coming ill; being an evil omen

omissable
Misspelling of omissible.

omissible
Able to be omitted.

omissive
tending to omit things
caused by omission

omittable
Synonym of omissible.

ommatidial
Of or pertaining to the ommatidia.

ommited
Misspelling of omitted.

omniabsent
Never present; always absent.

omniactive
Active in every way and everywhere.

omniaperturate
Describe a specific type of pollen grain in which the entire surface of the pollen wall can function as a potential site for the emergence of the pollen tube during germination.

omnibibulous
Able, or likely able, to drink almost anything (alcoholic).

omnicausal
Being the cause of everything.

omnichannel
Integrating all physical (offline) and digital contact channels to provide a unified customer experience.

omnichromatic
Panchromatic; of or having all colors.

omnicidal
Of or relating to omnicide.

omnicognizant
Aware of everything.

omnicomparativist
having a tendency to compare disparate elements of language (e.g. different forms, unrelated languages) in an attempt to establish parallels

omnicompetent
Competent in every area.
Competent in every area.

omnicomprehensive
Thoroughly comprehensive.

omniconsiderate
Showing consideration to everybody.

omnicorporeal
Comprehending or including all bodies; embracing all substance.

omnicredulous
Believing in everything.

omnicultural
Relating to all cultures

omnidenominational
Of or relating to all denominations.

omnidestructive
All-destroying.

omnidimensional
Relating to, or existing in, all dimensions simultaneously.

omnidirectional
In every direction, especially of a radio system capable of transmitting or receiving signals in all directions, or of a microphone capable of detecting sound from all directions.
Having a ring-shaped radiation pattern, with equal radiation in all azimuthal directions.
Of such an attack or effect that encompasses all directions.

omnielemental
Encompassing all elemental attributes possible.

omnierudite
Erudite in all subjects; polymathic.

omnifacial
Suitable for viewing from any direction.

omnifarious
Of many or all forms, varieties, or kinds.
Exceedingly varied.

omnific
Capable of making or doing anything; all-creating.

omnificent
all-creating, omnific.

omniform
Having every form or shape.

omniformal
omniform

omnifutuent
bisexual

omnigender
Treating all genders as one or the same, not discriminating or distinguishing between them; unisex.
Identifying with all genders.

omnigendered
omnigender

omnigeneous
Having no orbit-averaged radial magnetic drift

omnigenic
Concerning, or controlled by, all the genes of an organism

omnigenous
Consisting of all kinds.
Characterized by a uniformly symmetric distribution of nucleons within the nucleus.

omnilateral
On all sides of an issue or object.

omnilegent
Having read everything; exceptionally well-read.

omnilingual
Having the ability to speak, or to understand, all languages.

omnilinguist
Synonym of omnilingual.

omnilinguists
plural of omnilinguist

omniloquent
Speaking of all things or on all subjects.

omnilucent
All-illuminating; shedding light in every direction.

omnimalevolent
Infinitely evil, especially in reference to a deity or supernatural being.

omnimodous
Relating to all modes, ways or sorts

omninescient
Totally ignorant.

omniparent
That produces all things

omniparents
plural of omniparent

omniparient
Producing or bringing forth all things.

omniparous
Producing or giving birth to all things; omniparient.

omnipatient
Infinitely or extremely patient; capable of enduring everything, or a lot.

omnipercipient
Perceiving everything.
Able to fully understand the perspectives and feelings of everybody.

omniperfect
Truly perfect in every way.

omniperiodic
Having or consisting of every period (in various senses).

omniphibious
Of an aircraft: able to land on water and on all kinds of terrain.

omniphobic
That repels (almost) everything

omniplane
Of an ultrasonic probe, able to be electronically rotated between 0 and 180 degrees, permitting imaging in multiple planes.

omnipolar
Operating with either (north or south) magnetic pole

omnipotential
Allowing for every possibility; unlimited in potential.

omnipresent
Being everywhere simultaneously.

omniprevalent
Prevalent everywhere or in all things.

omniracial
Concerning or including every race.

omnirelevant
Relevant everywhere, or to everything; always relevant.

omniscent
Misspelling of omniscient.

omnisciency
Omniscience.

omniscient
Having total knowledge.

omnisentient
Having omnisentience, a sensory awareness of all things.

omnisexual
Being attracted to all genders (sometimes distinguished from pansexual by saying omnisexual attraction may still take account of gender or prefer particular genders).
Androgynous, exhibiting traits of all sexes.
Having or exhibiting sexuality everywhere.

omnishambolic
Being or relating to an omnishambles; utterly mismanaged.

omnisignificant
Meaningful in every detail.

omnisovereign
Absolutely sovereign.

omnispatial
Throughout space; everywhere in space.

omnispective
Beholding everything; all-seeing.

omnisubjugant
Subjugating all others.

omnisufficient
sufficient in all things.

omnitemporal
applicable at all times

omnitheist
A person who believes in omnitheism.

omnitheistic
Exhibiting or relating to omnitheism.

omnitolerant
tolerant of everything

omnitonic
That can be played in any key.

omnitruncated
Generated or modified by an omnitruncation.

omnivalent
Almighty; being all-powerful; omnipotent.

omnivarious
Of every variety.

omniversal
Relating to the omniverse.

omnivicarious
Permanently vicarious; shape-shifting; identity-grabbing.

omnivident
All-seeing.

omnivisible
Always or everywhere visible.

omnivolent
That wishes for everything

omnivorant
eating or consuming everything

omnivorous
Having a diet which is neither exclusively carnivorous nor exclusively herbivorous.
Having an interest in a variety of subjects.
All-consuming.
Of a parasite: attacking many species; not confined to a single host plant.

omnivourous
Misspelling of omnivorous.

omniwise
Having total wisdom.

omoclavicular
Of or pertaining to the shoulder and the clavicle.

omohyoid
Of or relating to the shoulder and the hyoid bone.
Of or relating to the omohyoid muscle.

omohyoidean
Relating to the omohyoid.

omohyoidei
plural of omohyoideus

omohyoideus
Synonym of omohyoid muscle.

omohyoids
plural of omohyoid

omophagic
Eating raw flesh; using uncooked meat as food.

omophagous
Eating raw flesh; using uncooked meat as food.

omosternal
Of or pertaining to the omosternum.

omphacitic
Of or relating to omphacite.

omphalic
Of or pertaining to the umbilicus, or navel.

omphalocentric
Overly introspective and inclined to navel-gazing

omphaloid
Shaped like a navel.

omphalomesaraic
Synonym of omphalomesenteric.

omphalomesenteric
Of or pertaining to the umbilicus and mesentery.

omphalopsychic
Related to or characterised by navel-gazing (omphaloskepsis).

omphalosceptic
Alternative form of omphaloskeptic.

omphalosceptics
plural of omphalosceptic

omphaloskeptic
One who contemplates or meditates upon one's navel; one who engages in omphaloscopy.

onagraceous
Of or relating to the family Onagraceae of flowering plants, including the fuchsia and the evening primrose.

onanistic
Of or pertaining to masturbation (onanism).
In a manner which suggests masturbation; hence, fruitless, self-congratulatory, self-absorbed, pointless.

onball
In the midfield positions.

onbeam
In line with excited parallel neurofibers.
On a transmitted carrier wave.

onbringing
A bringing on; an oncome; inducing; induction.
An ushering in.

onbringings
plural of onbringing

onc
Oncology.

onchocercal
Relating to worms of the genus Onchocerca or to the disease onchocerciasis

onchocercotic
Of or pertaining to onchocercosis.

oncoapoptotic
Relating to oncoapoptosis.