preferable
Better than some other option; preferred.

preferent
Preferred or favoured.

preferential
Of or relating to the showing or giving of preference.
Of or relating to a voting system in which the voters are allowed to indicate on their ballots their preference (usually their first and second choices) between two or more candidates, so that if no candidate receives a majority of first choices the one receiving the greatest number of first and second choices together is the winner.

prefermentation
Prior to fermentation

prefermentations
plural of prefermentation

preferrable
Alternative form of preferable.

preferred
simple past and past participle of prefer
simple past and past participle of preferre

preferreds
plural of preferred

prefertile
Prior to becoming fertile

prefertility
Before becoming fertile.

prefertilization
Prior to fertilization

prefestival
Before a festival.

prefetchable
Capable of being prefetched.

prefeudal
Before feudalism.

prefibril
Alternative form of prefibrillar.

prefibrillar
Before the fibrillar stage.

prefibrillary
Misspelling of prefibrillar.

prefibrogenic
Prior to fibrogenesis

prefibrotic
Prior to the development of fibrosis

prefictional
Before the development of fiction.

prefield
Before embarking on fieldwork.

prefight
Occurring before a fight.

prefigurable
Capable of being prefigured.

prefigurative
Related to prefiguration; that prefigures.

prefiling
Before filing

prefilm
Before watching a film.

prefilmic
Before the introduction of the medium of film.

prefiltration
Before filtration.

prefinal
Immediately before the last.

prefinalization
Before finalization.

prefinals
plural of prefinal

prefinancial
Prior to a financial transaction.

prefinished
simple past and past participle of prefinish

prefire
Before the occurrence of a fire.

prefixable
Capable of being added as a prefix.

prefixal
That is modified by the addition of a prefix.
Taking the role of a prefix.
That tends to make use of prefixes (more than suffixes) to create grammatical forms; prefixing.

prefixative
A fixative used in prefixation

prefixatives
plural of prefixative

prefixed
Having a (specified) prefix.
Added as a prefix.

prefixive
Forming words through the addition of a prefix.

prefixless
Without a prefix.

prefixlike
Resembling or characteristic of a prefix.

prefixt
simple past and past participle of prefix

preflame
Before the formation of a flame.

preflare
Prior to the eruption of a solar flare

preflavored
Flavored in advance.

preflexion
Before the flexion stage of larval development

preflood
Before a flood.

preflop
Alternative form of pre-flop.

preflops
plural of preflop

prefloral
Relating to preflowers

preflowering
Prior to flowering

prefocus
Describing a lamp whose light source is positioned to be in focus when fitted (especially in a motor car)

prefollicular
Prior to a follicular phase.

preforgiveness
Prior to forgiveness.

preformalin
Prior to treatment with formalin

preformant
Chiefly in Semitic languages: Synonym of preformative (“a formative letter, syllable, etc., at the beginning of a word”).

preformants
plural of preformant

preformationary
Relating to the theory of preformation.

preformative
a formative letter, syllable, etc., at the beginning of a word.

preformatives
plural of preformative

preformatted
Formatted in advance.

preformed
Formed, constructed or assembled in advance.

preformistic
Relating to the theory of preformationism.

prefossilized
Fossilized earlier than surrounding material.

prefoveal
Anterior to the fovea

prefractionated
fractionated prior to some other process

prefractionating
Relating to prefractionation

prefracture
Prior to (sustaining a) fracture

prefrail
Exhibiting the early signs that may lead to frailty.

prefranked
Of mail, an envelope, etc.: franked in advance.

prefraud
Before fraud.

prefricative
Before a fricative.

prefrontal
Of, pertaining to or situated in the anterior part of the frontal lobe.
Of, pertaining to or situated in front of the frontal bone.

prefrontals
plural of prefrontal

prefrontocortical
Relating to the prefrontal cortex.

prefrontostriatal
prefrontal and striatal

prefuck
occurring before a fuck; pre-coital

prefunctional
Not yet functional.

prefundamental
Given a group G that acts on a set P, a subset P is prefundamental for G if, for any g in G, gB is in B only if g is 1.

prefunded
funded in advance

prefuneral
Before a funeral.

prefurlough
Before a furlough.

prefusion
Prior to fusion.

prefusogenic
Prior to becoming a fusogen

preg
Pregnant.

pregage
To preengage.
To gauge beforehand; to make an initial estimate of size, magnitude or position.

pregalactic
Before formation of a galaxy.

pregametic
Prior to the formation of gametes

preganglionic
Describing the nerve fibres that supply a ganglion

preganglionics
plural of preganglionic

pregante
Misspelling of pregnant

pregastric
Before (reaching) the stomach (digestion etc)

pregastrula
prior to formation of the gastrula

pregastrulation
Prior to gastrulation

pregavage
Prior to gavage

pregelatinised
Alternative form of pregelatinized.

pregelled
gelled in advance

pregender
Before (the advent or consideration of, or division by) gender.

pregenetic
Prior to the discovery of genetics.

pregenital
Describing psychosexual development prior to the genital phase
In front of the genital region

pregenocide
Before a genocide.

pregenomic
Prior to the inclusion in a genome
Relating to a pregenome

pregentrification
Prior to gentrification.

pregentrified
Prior to gentrification.

pregenual
In front of a genu (of the brain)

pregeological
Before geology.

pregermarial
In front of the germaria

pregerminated
germinated in advance of another procedure

pregermination
Prior to germination

pregerminative
Prior to germination

pregestation
Before gestation.

pregestational
Before gestation.

preggers
Pregnant; carrying developing offspring within one's body.

preggie
Pregnant (carrying a baby).

preggies
plural of preggie

preggo
Pregnant.

preggos
plural of preggo

preggy
Pregnant (carrying a baby).

pregiven
Existing in the world, as opposed to arising from human apprehension.
Naturally occurring, as opposed to being socially constructed.
Provided beforehand; present at the start.

preglabellar
In front of the glabella

preglacial
Before an ice age (usually referring to the Pliocene)

preglenoid
in front of the glenoid fossa

preglobalization
Before globalization.

preglobular
Prior to the formation of a globular form

preglomerular
Occurring or located before the glomerulus.

preglycosomal
Prior to the development of a glycosome

pregnable
vulnerable to attack

pregnathal
anterior to the jaw (typically, in insects)

prego
Alternative spelling of preggo.

pregolf
Before playing golf.

pregonopodal
In front of a gonopod

pregraduate
Of or pertaining to those studies that take place before a student completes a degree course.

pregraduation
Prior to graduation from an academic course.

pregranular
Prior to the formation of granules

pregranulomatous
prior to the development of a granuloma

pregravid
Prior to pregnancy.

pregrievance
Before a grievance is filed.

preground
Having been ground in advance.

pregrown
grown in advance

pregrowth
A period before growth begins

pregrowths
plural of pregrowth

pregs
Pregnant.

preguidance
Before guidance.

pregummed
gummed in advance

prehabilitated
habilitated prior to some other process

prehabilitative
Relating to, or promoting prehabilitation

prehadronic
Of or pertaining to prehadrons.

prehallical
Relating to the prehallux

prehandicap
Before the onset of a physical or mental disability.

prehard
prehardened

preharvest
Before a harvest.

preharvested
Prior to harvesting; pre-harvest
Harvested in advance

prehatch
Before the hatching of an egg

prehatched
Not yet hatched

prehatching
Before the hatching of an egg.

preheadache
Before the onset of a headache.

prehearing
Before a legal hearing.