formerly
at some time in the past
previously; once

formidably
In a formidable manner.

formlessly
In a formless manner

formulaically
In a formulaic manner; according to an established formula.

formwise
In terms of form.

forn
Fore, before; in front of; forward; previously.

fornigh
Very near
Very nearly; almost.

forrader
Pronunciation spelling of forwarder.

forrit
Forwards, forward.

forsakenly
In a deserted manner; by itself; alone
helplessly

forsomuch
Forasmuch.

forsooth
Used as an intensifier, often ironic: indeed, really, truthfully.

forthby
Obsolete form of forby.

forthcomingly
In a forthcoming manner.

forthe
Obsolete spelling of forth.

forthen
Also; even.

forthrightly
In a forthright manner

forthward
Forward.

forthwith
Without delay; immediately.

forthwithal
Forthwith; immediately.

forthy
Therefore.
For this, for this reason; on this account.

fortiethly
In the fortieth place; fortieth in a row.

fortifyingly
In a manner that fortifies.

fortuitously
In a fortuitous manner; in a manner of happening by chance; coincidentally; accidentally.
In a fortuitous manner; in a manner of happening by a lucky chance; luckily; fortunately.

fortunantly
Misconstruction of fortunately.

fortunately
In a fortunate manner.
It is (or was, etc) fortunate that.

forwardly
In a forward manner

fossiliferously
In a fossiliferous manner

fossorially
In a fossorial manner

fosteringly
In a way that fosters or encourages.

foully
In a foul manner; revoltingly.

foundationally
In a foundational manner.

fountainously
In a fountainous manner.

fountainwise
In the manner of a fountain.

fourhandedly
With four hands; in a fourhanded manner.

fourice
Four times.

fourteenthly
In the fourteenth place; fourteenth in a row.

fourthly
In the fourth place; fourth in a row.

foveally
Towards the fovea

foveolately
In a foveolate manner.

foxily
In a foxy manner.

foxishly
In a foxish way.

fra
A title of a friar or monk: brother.

frabjously
In a frabjous manner; wonderfully, fabulously.

fractally
In a fractal manner.

fractionally
In a fractional manner

fractionatedly
Following fractionation

fractiously
In a fractious manner.

fractographically
In terms of, or by means of, fractography.

fragilely
In a fragile way or manner.

fragmentally
In a fragmental manner.

fragmentarily
In a fragmentary manner.

fragmentedly
In a fragmented way.

fragmentographically
By means of fragmentography.

fragrantly
In a fragrant manner

frailly
In a frail manner; weakly; infirmly.

frangibly
In a frangible way.

franklier
comparative form of frankly: more frankly

frankliest
superlative form of frankly: most frankly

frankly
In a frank or candid manner, especially in a way that may seem too open, excessively honest, or slightly blunt.
In truth, to tell the truth.
To a degree large enough as to be plainly evident.

frantically
In a frantic way.

frantickly
Obsolete form of franticly.

franticly
Rare spelling of frantically.

fraternally
In a fraternal manner.

fratricidally
In a fratricidal manner.

fraudfully
In a fraudful manner.

fraudlessly
Without the use of fraud.

fraudulently
In a fraudulent manner.

freakily
In a freaky manner.

freakin
Alternative form of freakin'.

freakishly
In a freakish manner.

freehandedly
In a freehanded manner.

freeheartedly
In a freehearted manner; lightly and without constraint or worry.

freeingly
In a way that is freeing.

freewheelingly
In a freewheeling manner; without constraint.

freezingly
In a way that is freezing; with intense cold.
With intense emotional coldness; dispassionately.

freighter
One who loads a ship.
One who charters and loads a ship.
One employed in receiving and forwarding freight.
One for whom freight is transported.
A ship used mainly to carry freight.
An aircraft used mainly to carry freight; a cargo aircraft or cargo plane.

freighters
plural of freighter

fremedly
As a fremd or stranger.

frenetically
In a frenetic manner

frenzically
frantically; frenziedly

frenziedly
In a frenzied manner.

frenzily
frenziedly; madly

frequentatively
In a frequentative way.

frequently
At frequent intervals.
For infinitely many terms of the sequence.

freshlier
comparative form of freshly: more freshly

freshly
Recently, newly.
In a rude or impertinent manner.

fretfully
In a fretful manner.

frettingly
With fretting behaviour.

frex
Abbreviation of for example.

frfr
Reduplication of fr (“for real”).

friably
In a friable manner.

fricatively
In a fricative way.

frice
four times

frictionally
In terms of friction

frictionlessly
In a frictionless way; without friction.

friendlessly
Without a friend; in a friendless manner.

friendlily
In a friendly manner; like a friend; warmly; kindly.

frightenedly
In a frightened manner.

frighteningly
In a frightening or terrifying manner.
Very; beyond usual expectation so as to cause surprise or concern.

frightfully
In a frightful manner.
Very, extremely.

frightsomely
In a frightsome manner.

frigidly
In a frigid manner; coldly; icily.

frillily
In a frilly manner.

frinstance
Alternative form of for instance.

frinstances
plural of frinstance

friskily
in a frisky manner

friskingly
With frisking movements; while leaping.

frivolously
In a frivolous manner

frizzily
In a frizzy manner.

fro
From; away; back or backward.

froggily
In a froggy way.

froggishly
In a froggish manner.

frolickingly
With frolics.

frolicksomely
Archaic spelling of frolicsomely.

frolicly
In a frolicsome manner; gaily or joyfully.

frolicsomely
In a frolicsome manner.

froliquely
Obsolete form of frolicly.

frondescently
In a frondescent manner.

frondosely
In a frondose manner.

frontally
In a frontal manner

frontlessly
shamelessly; impudently

frontly
Towards or through the front of something; directly.

frontocentrally
In a frontocentral manner or direction

frontoparietally
In a frontoparietal manner or direction

frontotemporally
In a frontotemporal way.

frontways
towards the front; forward

frontwise
Toward the front; in the direction of the front; frontward.

fros
plural of fro

frostily
In a frosty manner.

frothily
In a frothy way.

frothingly
With froth.

frotteuristically
In a frotteuristic manner.

frouzily
In a frouzy manner.

frowardly
in a froward manner

frownfully
In a frownful manner

frowningly
While or as if frowning

frownlessly
In a frownless manner

frowsily
In a frowsy manner.

frowstily
In a frowsty manner.

frowzily
In a frowzy manner

frozenly
While, or as if, frozen; in a manner that is cold, unfeeling, unmoving, etc.

frr
Elongated form of fr (“for real”).

fructuously
fruitfully

frugally
In a frugal manner.

fruitage
Fruit, collectively.
Product or result of any action, effect, good, or ill.

fruitages
plural of fruitage

fruitfully
In a fruitful manner; productively.

fruitily
In a fruity way.

fruitlessly
In a fruitless manner.

fruitwise
In terms of fruit.

frumpily
In a frumpy manner.

frumpishly
In a frumpish manner.

frustratedly
In a frustrated manner.

frustrately
in vain

frustratingly
In a frustrating manner; in a manner that causes frustration.

fruticosely
In a fruticose manner.

fsr
Initialism of for some reason.

ftw
Alternative form of FTW.

fubsily
In a fubsy manner.

fuckably
In a fuckable manner.

fuckheadedly
In a fuckheaded manner.

fuckingly
Fucking, extremely (as an intensifier).

fucktardedly
In a fucktarded manner.

fudgily
With the use of fudges; inaccurately or misleadingly.

fugaciously
In a fugacious way.

fugally
In a fugal manner.

fuggily
In a fuggy manner.

fugitively
In a fugitive manner.

fulgurantly
In a fulgurant manner.

fulgurously
In a fulgurous manner.

fuliginously
In a fuliginous manner.

fullheartedly
Alternative form of full-heartedly.

fullier
comparative form of fully: more fully

fulliest
superlative form of fully: most fully

fullwise
to the full; completely