underexpression
Insufficient or abnormally low expression

underexpressions
plural of underexpression

underextrapolation
insufficient extrapolation

underextrapolations
plural of underextrapolation

underfactorization
The use or consideration of too few factors in factor analysis.

underfamiliarity
The state of being underfamiliar.

underfermentation
inadequate fermentation

underflip
A flip trick, the flipping of a skateboard by flicking the underside of the board, while riding on the board.
An acrobatic maneuver, initiated while in mid-air, performing a backflip by flicking one's head back over one shoulder, making the body flip underneath the board or skis.

underflooring
A layer of flooring underneath the top layer or carpet.

underfloorings
plural of underflooring

underfocus
The state of a microscope that is focused slightly in front of the specimen

underfouds
plural of underfoud

underfrequency
The condition where the frequency of an electrical supply drops below normal parameters.

underfriction
A system for preventing a rollercoaster train from jumping off the track while in violent motion, using additional wheels under the track.

underfringe
A lower fringe; a fringe underneath something.

underfringes
plural of underfringe

underfundedness
The quality of being underfunded.

underfur
The thick, soft undercoat of some mammals, especially those that spend time in the water

underfurs
plural of underfur

undergaoler
Dated spelling of underjailer.

undergaolers
plural of undergaoler

undergeneralisation
Alternative form of undergeneralization.

undergeneralisations
plural of undergeneralisation

undergeneralization
The act, or an instance, of undergeneralizing.

undergeneralizations
plural of undergeneralization

undergeneration
The generation of too little or too few of something; underproduction.
The act of undergenerating.

underglycolysation
Misspelling of underglycosylation.

underglycosylation
Less than normal glycosylation.

undergod
A lower or inferior god; a subordinate deity; a demigod.

undergods
plural of undergod

undergoverness
A subordinate governess.

undergovernesses
plural of undergoverness

undergovernment
A subordinate or secondary government.

undergovernments
plural of undergovernment

undergraduatedom
The realm or sphere of undergraduates.

undergraduateness
The property of being an undergraduate.

undergroundness
The quality of being underground (hidden, or outside the mainstream).

underhair
undercoat, underfur
pubic hair

underhandedness
The characteristic of being underhanded.

underhandness
The state or condition of being underhand; underhandedness.

underhealing
The formation of insufficient new tissue during the healing of a wound

underhint
A faint hint (of something).

underhope
A lowered expectation or hope.

underhopes
plural of underhope

underhum
A background hum.

underhydration
Inadequate hydration.

underhydroxylation
Insufficient hydroxylation (typically of collagen)

underidentification
Insufficient identification.

underimmunization
inadequate immunization

underimmunizations
plural of underimmunization

underimmunosuppression
inadequate immunosuppression

underinclusion
inclusion of too few or too little

underinclusions
plural of underinclusion

underinclusiveness
The quality of being underinclusive.

underinclusivity
Underinclusiveness.

underindulgence
An act of underindulging; indulgence in too little.

underinsurance
Inadequate insurance.

underinterpretation
Inadequate interpretation.

underinterpretations
plural of underinterpretation

underinventiveness
The fact of being underinventive; insufficient inventiveness.

underinvestment
An insufficient investment.

underinvestments
plural of underinvestment

underirrigation
Inadequate irrigation.

underissue
To issue too few or too little of.

underissued
simple past and past participle of underissue

underissues
third-person singular simple present indicative of underissue

underivability
The state or condition of being underivable; inderivability.

underivedness
The quality of not being derived from anything else.

underkind
A subordinate or inferior kind or class.

underkingdom
The realm of an underking.
A subordinate or dependent kingdom.

underkingdoms
plural of underkingdom

underlayment
Something that is underlaid, such as planking in a room of a house; underlay.

underlayments
plural of underlayment

underledge
A lower or nether ledge.

underledges
plural of underledge

underleg
The lower part of a leg.

underlegs
plural of underleg

underlexicalization
The presence of too few words or lexical items for an entity or concept.

underlier
That which underlies.

underliers
plural of underlier

underlimit
A lower bound.

underlimits
plural of underlimit.

underlinement
Underlining.

underlip
The lower lip.

underlips
plural of underlip

underlubrication
inadequate lubrication

underluminosity
Insufficient luminosity

underlyingness
The quality of being underlying.

undermaintenance
Insufficient or inadequate maintenance.

undermakeup
A layer of makeup that goes beneath the foundation.

undermakeups
plural of undermakeup

undermanagement
inadequate or insufficient management

undermasculinization
The quality of being undermasculinized.

undermetallation
Insufficient metallation

undermethylation
The quality of being scarcely methylated.

undermind
The subconscious mind or self.
The unconscious mind; intuition.

undermineralization
Insufficient mineralization.

undermodification
Insufficient modification.

undermodifications
plural of undermodification

undermodulation
Insufficient modulation (typically of a radio signal)

undermodulations
plural of undermodulation

undermyelination
Insufficient myelination

undernature
An underlying, secretive, or surreptitious nature.

underneathness
The quality of being underneath.
A space (literal or figurative) that is underneath.

underness
The quality of being under (beneath or below).

underneutralization
The process of underneutralizing.

underniceness
Lack of delicacy or fastidiousness.

undernotification
Incomplete notification (typically of deaths)

undernourishment
Insufficient nourishment
The condition of being undernourished

underobturation
Insufficient obturation; an imperfect stopping up, or underfilling.

underoptimization
The act or process of underoptimizing.

underorganization
Insufficient organization.

underoxygenation
The state of being underoxygenated.

underpair
A pocket pair of a lower rank than all of the community cards on the board.

underpairs
plural of underpair

underparameterization
Insufficient parameterization

underparticipation
Inadequate participation.

underpassage
A lower passage.

underpassages
plural of underpassage

underpayment
An insufficient payment
The act of making such a payment
The amount by which a payment is insufficient

underpayments
plural of underpayment

underpeopling
The state of having too sparse a population.

underperception
The condition of underperceiving.

underperformance
The state or quality of underperforming

underperformances
plural of underperformance

underperfusion
inadequate perfusion

underpigmentation
Inadequate pigmentation.

underplacement
Placement below or subordinate to others.
Assignment to a placement that does not fully use the person's talents.
Extreme underconfidence.

underplacements
plural of underplacement

underpopulation
Insufficient population.

underportion
The lower portion of something; the underneath.

underportions
plural of underportion

underprecision
inadequate precision

underprediction
A prediction that is smaller than the true value.

underpredictions
plural of underprediction

underprenylation
Insufficient prenylation / isoprenylation

underpreparation
insufficient preparation

underpreparedness
State or condition of being underprepared.

underpressure
insufficient pressure; a marked drop in pressure

underpressures
plural of underpressure

underpressurization
Inadequate pressurization.