ADJECTIVES IN [ful] THAT MAY OR MAY NOT TAKE [ness]
THE FOLLOWING DO NOT USUALLY TAKE [ness], AS THE BASE NOUN IS ALREADY ABSTRACT:
beautiful bountiful fateful plentiful remindful wonderful
THUS, WE SIMPLY HAVE:
beauty bounty fate plenty (the noun, as in "the land of plenty") wonder (noun)
"remindful" is based on the verb, "to remind"; an abstract noun must be chosen from derivationally unrelated synonyms, like "reminiscence", "déjà vu", "analepsis", and so on.
HOWEVER, DO NOTE: beauteousness bounteousness (munificence) plenteousness wondrousness, which do not quite mean the same thing as "beauty", "bounty", etc.
THE FOLLOWING [ful] ADJECTIVES DO TAKE [ness]:
artful awful aweful baleful baneful blissful boastful careful cheerful deceitful delightful direful disdainful disgraceful doleful doubtful dreadful dutiful (un)faithful fanciful fateful fearful flavorful forceful (forcible) forgetful fretful frightful fruitful gainful employment eventful gleeful (des/un)graceful grateful (gratitude) guileful hateful healthful heedful hopeful hurtful ireful joyful (joyous) (un)lawful lustful masterful (mastery) meaningful merciful (un)mindful mournful needful neglectful painful peaceful pitiful (piteous) playful powerful prideful purposeful regretful remorseful resentful (dis)respectful rightful ruthful shameful sinful (un)skillful slothful sorrowful soulful spiteful successful (dis)tasteful(tasteless) tearful thoughtful (dis/mis)trustful truthful tuneful useful vengeful wakeful wasteful wileful (wily) wishful woeful worshipful wrathful wrongful youthful
THE FOLLOWING MAY TAKE [ful] AND [less]. THE CONTRAST IN MEANING IS NOT ALWAYS PREDICTABLE AND REGULAR. THE INTERACTION WITH PREFIXES [un] and [dis] IS ALSO PECULIAR. STILL MORE CURIOUS ARE THE FURTHER DERIVATIONS OF ABSTRACT NOUNS. USUALLY, WHERE [ness] IS POSSIBLE, SO IS [ly]ALTHOUGH THE REVERSE MAY NOT BE TRUE. THE PREFIXES (SOMETIMES) SEEM TO BLOCK THE ADDING OF [ness], BUT NOT OF [ly]. WHERE THERE IS SUCH BLOCKING, THERE USUALLY WOULD BE REDUDANCY OF MEANING, e.g., fearlessness, *unfearfulness. INTERESTINGLY, SIMILAR REDUNDANCIES SEEM TO OCCUR WITH [ly], BUT BLOCKING DOES NOT, e.g., fruitless(ly) =? unfruitful(ly), heedless(ly) =? unheedful(ly), fearless(ly) =? unfearful(ly). IN FACT, THE MEANINGS, e.g., OF "fearless" AND "unfearful" ARE PROBABLY A BIT DIFFERENT.
Art artful(ly/ness), artless(ly/ness)
Care careful(ness), careless(ly/ness)
Cheer cheerful(ly/ness), cheerless(ness)
Doubt doubtful(ly), doubtless, undoubtedly, doubt (abstract noun)
faith faithless(ly/ness), unfaithful(ly/ness)
fear fearless(ly/ness), unfearful(ly)
flavor
force?
fret!!
Fruit fruitless(ly/ness), unfruitful(ly)
Grace graceless(ly/ness), ungraceful(ly), disgraceful(ly), disgrace (=??disgracefulness!)
Guile
hate?
heed heedless(ly/ness), unheedful(ly)
hope
joy
law lawless(ly/ness), lawful(ly/ness), unlawful(ly)
meaning meaningless(ly/ness), meaningful(ly/ness), unmeaningful(ly)
mercy merciful(ly), unmerciful(ly), merciless(ly/ness)
mind mindless(ly/ness), mindful(ly/ness), unmindful(ly)
need, needy needily, neediness, unneeded, needless(ly)
pain
purpose purposeless(ly/ness), unpurposeful(ly)
remorse remorseless(ly/ness), unremorseful(ly)
ruth- (root only: ruthless(ly/ness)
shame
taste tasteless(ly/ness), distasteful(ly)
tear
thought thoughtless(ly/ness), thoughtful(ly/ness), unthoughtful(ly)
tune tuneless(ly/ness), tuneful(ly/ness), untuneful(ly)
use useless(ly/ness), useful(ly/ness)
NOUNS THAT TAKE [ful] / [full] AND PRODUCE COUNTABLE NOUNS (see below)
bagful brimful handful mouthful plateful (table/tea) spoonful
SOME NON-PRODUCTIVE ANGLO-SAXON NOMINAL ENDINGS
[dom]
boredom (ennui)
condom (prophylactic)
fiefdom
freedom (liberty)
kingdom (realm)
seldom (rarely)
stardom (celebrity, fame)
thraldom (enchantment)
whoredom (prostitution)
wisdom (sagacity)
[hood]
adulthood
babyhood (infancy)
brotherhood (fraternity)
childhood
fatherhood (paternity)
godhood (divinity)
knighthood
maidenhood (virginity)
motherhood (maternity)
neighborhood (vicinity)
priesthood (clergy)
sisterhood (sorority)
teenagehood (adolescence)
widowhood
[head]
figurehead
godhead
maidenhead
[ship]
apprenticeship
authorship
censorship
championship
companionship
craftmanship
dealership
dictatorship
entrepreneurship
fellowship
flagship!
friendship
hardship (adversity)
horsemanship
kinship (comaradery, fraternity)
kingship (royalty)
ladyship
leadership
lordship
musicianship
ownership
penmanship
proctorship
readership
receivership
relationship
salesmanship
scholarship
spaceship!
sponsorship
sportsmanship
stewardship
(one©)up©manship
workmanship
worship
[th]
berth
birth (bear)
breadth (broad)
depth (deep)
filth (to befoul; defilement)
fourth, fifth, etc.
growth (grow)
health (to heal)
hearth
height* (high)
length (long)
stealth (to steal away)
strength (strong)
tilth (to till the soil)
warmth (warm)
wealth (the common weal)
width (wide)
wrath, wroth
[fall]
downfall
footfall
waterfall
windfall
[ful] / [full]
bagful
bellyful
chock-full
cupful
faceful
handful
mouthful
plateful
spoonful
[some]
awesome (awful; awe-inspiring)
blithesome
burdensome
cumbersome
fearsome
frolicsome
fulsome
gruesome
handsome
irksome
lissome
lithesome
lonesome
loathsome
quarrelsome
rollicksome
threesome
tiresome
troublesome
twosome
wearisome
wholesome
wondersome
worrisome
[like]
child-like (childish)
(un)lady-like
life-like
spouse-like
sylph-like
tramp-like
war-like