Transcript Retro-, an-, anti-

Vocabulary: retro-, an-, antiMeaning:
retro – backward, back
An-, Anti – against opposite
antacid (noun)
a substance that works against
stomach acid
Antacid
He took an antacid after eating too
much pizza.
Antibacterial (adjective)
Designed to fight against or kill
bacteria
antibacterial
I wash my hands with antibacterial
soap to kill germs.
antidote (n)
A remedy or cure; something that
works against a poison.
antidote
After eating the poison apple, the prince
gave Sleeping Beauty a magical kiss as
an antidote to the poison.
antihistamine (noun)
A medicine that works against colds
and allergies
antihistamine
To help my allergies and sneezing in the
spring, I take an antihistamine to make
me feel better.
Antonym (n)
A word that means the opposite of
another word.
Antonym
Big is the antonym of small.
Retroactive (adj)
Goes back to a prior time
retroactive
The prices on new t-shirts went up and
was retroactive to yesterday, so I had to
pay more money than I originally
thought.
retrofit (verb)
To go back and install something
that was not available at the time of
original manufacturing
retrofit
After the last earthquake, the freeway
bridges were retrofit with new supports
to make them stronger.
Retrospective (adj.)
Characterized by looking back at
the past and reflecting; related to
the past
retrospective
After the movie star passed away, I
watched a retrospective of her life.