subungually
In a subungual way: under a toenail, fingernail, or hoof.

suburbanly
In a suburban manner.

suburethrally
In a suburethral manner

suburothelially
In a suburothelial manner

subventrally
In a subventral manner or direction

subventricularly
In a subventricular manner or direction

subverbally
In a subverbal manner.

subversively
In a subversive manner.

subvertically
In a subvertical manner

subvertingly
So as to subvert; in a subversive manner.

subvisually
Below the threshold of vision.

subvitally
In a subvital manner

subvocally
In a subvocal manner.

succedaneously
In a manner that serves as a succedaneum.

succeedingly
one after the other

successantly
Synonym of successively; in order or succession.

successfully
In a successful manner; with success; without failing.

successionally
In terms of, or by means of, succession.

successively
In a serial or successive manner; one following another.

successlessly
Without success.

succinctly
In a succinct manner, concisely.

succubously
In an orientation such that proximal (posterior) parts of older leaves overlap the distal (anterior) parts of younger ones.

succulently
In a succulent way.

suchly
In such a manner; thus.

suchwise
In such a way; in that manner.

suckingly
With a sucking sound or motion.

suctorially
In a suctorial manner.

suddently
Alternative form of suddenly.

suently
Evenly; smoothly.

sufferably
In a sufferable manner.

sufferingly
With suffering.

sufficiently
In a sufficient manner; enough.
To a sufficient extent.

sufficingly
Synonym of sufficiently.

suffixally
In a suffixal way.

suffocatingly
In a suffocating manner, or to a degree that suffocates

suffusedly
In a suffused (suffuse) way.

suffusely
In a suffuse way.

sugarily
In a sugary way.

suggestfully
Synonym of suggestively.

suggestibly
In a suggestible manner.

suggestingly
So as to suggest; suggestively.

suggestively
In a suggestive manner.

suicidally
In a suicidal fashion.
In terms of or by means of suicide.

suingly
in succession; afterwards.

suitably
In a suitable manner; with propriety.

suitingly
In a suiting manner; appropriately.

sulcately
In a sulcate manner.

sulfureously
Alternative form of sulfurously.

sulfurously
In a sulfurous way.

sulkily
In a sulky manner.

sulkingly
While sulking; in a sulky manner.

sullenly
In a sullen manner.

sulphureously
Archaic form of sulfurously.

sulphurously
Alternative spelling of sulfurously.

sultrily
In a sultry manner.

sumat
Alternative form of summat.

sumdel
Alternative form of somedeal.

sumet
Alternative form of summat.

summarily
In a summary manner.
Over a short period of time, briefly.

summat
Something.

summatively
In a summative manner.
By means of summative assessments, aiming to summarize earlier knowledge with periodic tests.

summats
plural of summat

summerily
In a manner reminiscent of summer.

summet
Alternative form of summat.

summoningly
So as to summon.

summot
Alternative form of summat.

summut
Alternative form of summat.

sumptiously
Profusely; sumptuously; praiseworthily; delightfully.

sumptuarily
In a sumptuary way.

sumptuously
In a sumptuous manner.

sumwhere
Eye dialect spelling of somewhere.

sunderling
Separately.

sundrily
In sundry ways; variously.

sunkenly
In a sunken way.

sunlessly
Without sun.

sunnily
In a sunny fashion; optimistically

sunwards
Toward the sun.

sunways
deasil

superabundantly
To a superabundant extent

superaddedly
By superaddition.

superadditively
In a superadditive manner

superadiabatically
In a superadiabatic manner.

superagonistically
In a superagonistic manner

superambiently
In a superambient way.

superbly
Excellently, done to the best possibly degree, admirably.
Haughtily.

superbrilliantly
In a superbrilliant manner.

supercalifragilisticexpialidociously
In a supercalifragilisticexpialidocious manner.

supercelestially
In a supercelestial way.

superciliously
In a supercilious manner.

supercolossally
In a supercolossal manner.

superconductively
In a superconductive manner.

superconformally
In a superconformal manner
With regard to superconformal algebra

supercosmically
In a supercosmic manner; vastly huge.

supercritically
In a supercritical way.

supercutaneously
In a supercutaneous manner

superdiffusively
By means of superdiffusion

superelastically
In a superelastic manner.

supereminently
In a supereminent manner; to a supreme degree.

supererogatorily
In a supererogatory manner.

superessentially
In a superessential way.

supereternally
In a supereternal manner.

superexcellently
In a superexcellent manner; of supreme excellence.

superexplosively
In a superexplosive manner.

superexponentially
In a superexponential manner

superextraordinarily
In a superextraordinary manner.

superferociously
In a superferocious manner.

superficially
In a superficial manner; shallowly.

superfinely
In a superfine manner.

superfluently
In a superfluent manner

superfluously
In a superfluous manner.

superformidably
In a superformidable manner.

superglacially
In a superglacial manner; above a glacier or ice.

superhelically
In a superhelical manner

superheroically
In a superheroic manner.

superhumanly
In a superhuman way, or to a superhuman extent

superimmensely
In a superimmense manner.

superimposably
Such that it can be superimposed.

superincumbently
In a superincumbent manner.

superiotemporally
Alternative form of superotemporally.

superiourly
Obsolete form of superiorly.

superlatively
In a superlative manner; in the greatest possible way.

superlinearly
In a superlinear manner.

superly
In an excellent manner; excellently.

supermassively
In a supermassive way.

supermonstrously
In a supermonstrous way.

supermorbidly
In a supermorbid way.

supernaculum
According to the rules of an old drinking game in which the drinker upturned the empty cup and had to drink more if the remaining droplets spilled beyond the edge of his fingernail.
To the last drop, to the bottom.

supernally
In a supernal way; celestially.

supernatantly
In a supernatant manner.

supernationally
In a way that spans nations; above or beyond what is national.

supernaturally
In a supernatural manner.

supernormally
In a supernormal fashion.

supernumerarily
In a supernumerary manner; excessively.

superoanteriorly
In a superoanterior manner or direction

superocaudally
In a superocaudal manner

superodorsally
In a superodorsal manner or direction

superoinferiorly
In a superoinferior manner.

superolaterally
In a superolateral direction

superomedially
In a superomedial direction

superonasally
In a superonasal manner or direction

superoposteriorly
In a superoposterior manner or direction

superoptimally
In a superoptimal way.

superordinately
In a superordinate manner.

superorganically
In a superorganic manner.

superotemporally
In a superotemporal direction

superoverwhelmingly
In a superoverwhelming manner.

superparamagnetically
In a superparamagnetic way; by means of superparamagnetism.

superphenomenally
In a superphenomenal manner; to a superlatively phenomenal degree.
In terms of superphenomena.

superplastically
In a superplastic way.

superpolynomially
In a superpolynomial manner.

superpositionally
In terms of, or by means of, superposition.

superproficiently
In a superproficient manner.

superradiantly
In a superradiant manner.

superrationally
In a superrational manner.

supersedingly
So as to supersede or take over from something else.

superselectively
In a superselective manner

supersensibly
In a supersensible manner.

supersensitively
In a supersensitive manner.

supersensually
In a supersensual manner.

supersensuously
In a supersensuous manner.

superserviceably
In a superserviceable manner.

supersexually
In a supersexual manner.

superstitiously
In a superstitious manner.

superstructurally
In terms of superstructure.

supersubstantially
In a supersubstantial manner

supersuperlatively
Alternative form of super-superlatively.