The opposite of Dirty is
Clean
the opposite of down is
up
The opposite of Yes is
NO
The opposite of soft is
hard
The opposite of up is
down
The opposite of Clean is
Dirty
the opposite of last is
first
The opposite of Hot is
Cold
the opposite of day is
night
The opposite of Cold is
Hot
The opposite of dirty is
clean
The opposite of Light is
Dark
The opposite of tall is
short
the opposite of outside is
inside
The opposite of easy is
hard
The opposite of clean is
dirty
The opposite of hungry is
full
The opposite of (fall a) sleep is
wake up
The opposite of Quiet is
Noisy
the opposite of laugh is
cry
the opposite of "a little" is
a lot
the opposite of good is
bad
The opposite of NO is
Yes
The opposite of sun
moon
The opposite of Hot is
Cold
The opposite of Dark is
Light
The opposite of hard is
soft
the opposite of wrong
right
The opposite of new is
old
The opposite of Noisy is
Quiet
The opposite of cry
laugh
The opposite of inside is
outside
The opposite of go is
stop
The opposite of night is
day
the opposite of after is
before