absent - present
abundant - scarce
accept - decline
accurate - inaccurate
admit - deny
advantage - disadvantage
against - for
agree - disagree
backward - forward
bad - good
beautiful - ugly
before - after
begin - end
below - above
bent - straight
best - worst
calm - windy
can - cannot
capable - incapable
captive - free
careful - careless
cheap - expensive
cheerful - sad
clear - cloudy
clever - stupid
dangerous - safe
dark - light
day - night
daytime - nighttime
dead - alive
decline - accept
decrease - increase
early - late
east - west
easy - hard
empty - full
fade - brighten
fail - succeed
false - true
famous - unknown
far - near
fast - slow
fat - thin
feeble - strong
generous - stingy
gentle - rough
get - give
giant - tiny
girl - boy
happy - sad
hard - easy
hard - soft
harmful - harmless
harsh - mild
hate - love
ill - healthy
immense - tiny
important - trivial
in - out
include - exclude
join - separate
landlord - tenant
large - small
last - first
laugh - cry
lawful - unlawful
lazy - industrious
leader - follower
left - right
mad - happy
major - minor
many - few
mature - immature
nadir - zenith
narrow - wide
near - far
neat - messy
obedient - disobedient
odd - even
offer - refuse
old - young
past - present
patient - impatient
peace - war
permanent - temporary
plentiful - scarce
qualified - unqualified
raise - lower
rapid - slow
rare - common
safe - unsafe
same - opposite
satisfactory - unsatisfactory
secure - insecure
scatter - collect
separate - join
serious - trivial
second-hand - new
shallow - deep
shrink - grow
take - give
tall - short
tame - wild
them - us
under - over
unfold - fold
unknown - known
vacant - occupied
vanish - appear
war - peace
wax - wane
weak - strong
yes - no
alive - dead
all - none
ally - enemy
always - never
ancient - modern
answer - question
antonym - synonym
apart - together
better - worse
big - little
black - white
blame - praise
bless - curse
bitter - sweet
borrow - lend
bottom - top
clockwise - counterclockwise
close - far
closed - ajar
clumsy - graceful
cold - hot
combine - separate
come - go
comfort - discomfort
common - rare
deep - shallow
definite - indefinite
demand - supply
despair - hope
dim - bright
disappear - appear
discourage - encourage
encourage - discourage
end - begin
enter - exit
even - odd
few - many
find - lose
first - last
float - sink
foolish - wise
fore - aft
free - bound
fold - unfold
give - receive
glad - sad
gloomy - cheerful
go - stop
good - bad
healthy - diseased
heaven - hell
heavy - light
help - hinder
here - there
hero - coward
inferior - superior
inhale - exhale
inner - outer
inside - outside
intelligent - stupid
junior - senior
lengthen - shorten
lenient - strict
left - right
less - more
light - dark
like - dislike
likely - unlikely
limited - boundless
melt - freeze
merry - sad
messy - neat
minor - major
never - always
new - old
night - day
nighttime - daytime
old - new
on - off
open - closed
opposite- same
poetry - prose
polite - rude
possible - impossible
poverty - wealth
powerful - weak
question - answer
real - fake
rich - poor
right - left
sick - healthy
simple - complex
singular - plural
sink - float
slim - fat
slow - fast
sober - drunk
soft - hard
some - none
sorrow - joy
thick - thin
tight - loose
tiny - big
together - apart
unqualified - qualified
unsafe - safe
up - down
victory - defeat
virtue - vice
white - black
wide - narrow
win - lose
yin - yang
appear - disappear
approve - disapprove
arrive - depart
artificial - natural
ascend - descend
attic - cellar
attractive - repulsive
awake - asleep
brave - cowardly
build - destroy
bold - meek
borrow - lend
bound - unbound
boundless - limited
bright - dim
brighten - fade
conceal - reveal
contract - expand
cool - warm
correct - incorrect
courage - cowardice
create - destroy
crooked - straight
cruel - kind
compulsory - voluntary
diseased - healthy
down - up
downwards - upwards
dreary - cheerful
dry - moist
dull - bright
dusk - dawn
expand - contract
export - import
exterior - interior
external - internal
forget - remember
found - lost
fresh - stale
frequent - seldom
friend - enemy
for - against
fortunate - unfortunate
full - empty
grant - refuse
great - tiny
grow - shrink
guest - host
guilty - innocent
hill - valley
hinder - help
honest - dishonest
horizontal - vertical
hot - cold
humble - proud
interesting - boring
interior - exterior
interesting - dull
internal - external
intentional - accidental
justice - injustice
long - short
loose - tight
lose - find
loss - win
loud - quiet
love - hate
low - high
loyal - disloyal
minority - majority
miser - spendthrift
misunderstand - understand
more - less
no - yes
noisy - quiet
none - some
north - south
optimist - pessimist
out - in
outer - inner
over - under
pretty - ugly
private - public
prudent - imprudent
pure - impure
push - pull
quiet - loud
radical - basic
right-side-up - upside-down
rough - smooth
rude - courteous
sour - sweet
sow -reap
straight - crooked
start - finish
stop - go
strict - lenient
strong - weak
success - failure
sunny - cloudy
synonym - antonym
tough - easy
transparent - opaque
true - false
truth - falsehood
upstairs - downstairs
us - them
useful - useless
visible - invisible
voluntary - compulsory
wisdom - folly
within - outside
wrong - right
young - old