Opposites
strong
weak
200
two hundred
huge
enormous
tall
short
1321
One thousand three hundred twenty-one
or thirteen twenty-one
small
tiny
expensive
cheap
899
eight hundred ninety-nine
cheap
inexpensive
clean
dirty
10000
ten thousand
clean
neat
intelligent
silly
1996
nineteen ninety-six or one thousand nine hundred ninety six
rich
wealthy