Common Prefixes

Pre
fixMeaningExamplesun-not or oppositeundo, unhappy, unimportantre-again or backredo, remix, returnin-not or ininvisibleim-not or inimperfectig-notignorantil-not or inilliterateir-notirresponsibledis-apartdisagreedi-awaydivergedif-oppositedifferenten-to cause to be in a place or stateenact, encourage, encircleem-to cause to be in a place or stateemploy, empowernon-not or oppositenonthreatening, nonfiction, nonstopin-ininside, insight, investim-inimpressil-inillumineover-over, too muchoverdo, overstate, overload, overseemis-wrong, incorrectmisunderstand, misplacesub-below, beneath, under, secondarysubconscious, substandardpre-beforepredawn, preset, previewinter-between, amongintermix, intermingle, intertwinefore-beforeforetaste, foreclose, forehandde-away from, out ofdefrost, deforest, deflatetrans-acrosstransmit, transfusion, transportsuper-over, big, extremesuperhighway, superhumansemi-half, partsemicircle, semiconductoranti-againstantidepressant, antifreezemid-middlemidday, midsummer, midnightunder-below, not enoughunderfed, underweight