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anti-
(AN-tee)against or opposite
Greek for against. An antidote works against poison; an antonym means the opposite.
prefixGreek
Good, bad, with, againstSpellings:antiant
Example words
antibiotic
a medicine that fights germs (anti-life)
antonym
a word that means the opposite
antidote
a remedy that works against a poison
antifreeze
a liquid that works against freezing
Common Core alignment
Grades served: 4, 5
- L.4.4bUse common, grade-appropriate Greek and Latin affixes and roots as clues to the meaning of a word (e.g., telegraph, photograph, autograph).
- L.5.4bUse common, grade-appropriate Greek and Latin affixes and roots as clues to the meaning of a word (e.g., photograph, photosynthesis).
Related roots
Good, bad, with, against. Roots that judge or pair things up: good, bad, together, opposed.
Browse all good, bad, with, against roots →L.4.4bL.5.4b