flagrant boasting

flamboyant brilliancy

flaming zeal

flashing wit

flat denial

flattering aspect

flaunting insolence

flawless constitution

fleecy clouds

fleeting intimation

flickering conscience

flighty obstinacy

flimsy organization

flippant ease

floating blackness

florid oratory [florid = ornate; flowery]

flowery circumlocution

flowing imagery

fluctuating light

fluent sophist

fluffy indignation

fluid ideas

flushed embarrassment

fluttering laugh

focused attention

foggy notion

fond enthusiast

foolish frenzy

forbearing silence

forbidding air

forceful audacity

foregone conclusion

foremost opponent

forensic orator

forest stillness

forgotten graveyard

forlorn desolation

formal acquiescence

formidable barrier

formless jottings

formulated conclusions

fortified selfishness

fortuitous circumstance

foul calumny [calumny = maliciously lying to injure a reputation]

fragile form

fragmentary facts

fragrant reminiscence

frail craft

frank admiration

frantic ardor

fraternal pity

freakish humor

freeborn soul

freezing disdain

frenzied haste

frequent digression

fresh impetus

freshening breeze

fretful discontent

friendly familiarity

frightened sense

frightful apparition

frigid disdain

frisky lightness

frivolous expedient

frolicsome extravagance

frozen wonder

fructifying thought [fructifying = make fruitful or productive]

fruitful indignation

fruitless repining

fugitive thoughts

full plenitude

fulsome praise

fumbling endeavor

functional disparity

fundamental principles

funereal gloom

furious invective [invective = abusive language]

furrowed cheeks

furtive glance

fussy enthusiasms

futile babble

G

gabbling reminiscences [gabbling = speak rapidly or incoherently; jabber]

galling thought

galvanic jumpings

gaping chasm

garbled information

garish decorations

garnered experience

gathering gloom

gaudy embellishments