常用英语单词词根

1 1 dis not the opposite of disadvantage dislike disagree disappear disarm disaster disastrous disappoint disable disability discharge disclose discount discourage discover discovery discrepancy disease disgrace disguise disgust dishonor dishonest dislike dismay disorder dispatch disperse displace displacement displease disregard dissatisfy distort distract disintegrate isparage dispassion disproportionate 2 in not in into inability incorrect inability incapable indirect inhuman injustice informal inside include inclusive income increase increasingly incredible indefinite independence independent indifferent indirect indispensable individual indoor inertia inevitable infamous infinite inhabit inhabitant inherent inject inland inlet inner innocent innumerable input inquire inquiry insane insensitive insert inside insight insist inspect inspiration inspire install installation installment instance instant instinct insulate intense interior internal into intrinsic invade invalid invaluable invariably invasion invert investigate invisible involve inward incomplete indecisive inedible inept inevitably infection infirm injection innate insatiable insecurity insider insidious 3 im not in into impossible imbalance immature immoral impatient implicit impress impression import immigrate imprison immerse 4 il not illegal illiterate illogical ir not irregular irresponsible irrespective 5 un not unable uncover undo undoubtedly undress uneasy unemployment unexpected unfold unfortunately unimportant unlike unload unusual unaware enlightened unparalleled unsustainable 6 non not nonsmoker nonexistence non cooperation nonstop nonmetal nonresident nonsense nonfundamentalist nonspecialist 7 mis wrong wrongly mislead misspell misstep misfortune misuse misguided misinformation 8 de showing the opposite to remove to reduce deform deface demobilize destruction deforest denationalize depress depression decode decrease degenerate degrade descend descendant descent 9 pre before in advance prefix pre historic precaution precede preceding preclude predecessor predict predominant preface prejudice preliminary premature premier premise premium preparation prepare prepay preside president presumably presume pretext prevail prevent previous prewar preconception prediction prescientific presumptively 10 ante before in advance anteroom ante Christian antemeridian anticipate antique 11 fore in advance before in or at the front forearm forehead foreman foretell foresee forefather foreleg forerunner fore foremost forecast forewarn 12 ex out out of former ex minister ex president ex Soviet Union ex wife export exclude exclusive excursion exhibit exile exit exotic expand expansion expedition expel expend expenditure expense explode explosion explosive expose exposition exposure express expression extend extension extensive exterior external extinct extra extract 13 post later than after postgraduate postwar postmeridian postpone postscript 14 sub under below less important sub subject subway subtitle subdivide submarine sub zero submerge submit subordinate subscribe subsection subsequent subsidiary subsidy substance substantial substitute subtract suburb subconsciously subtly 15 infra below in a range beyond infrastructure infrared 16 re again back to a former state react reaction recall recede receipt recipient reclaim 2 recognize recognition record recorder recover recovery recreation recur recycle redundant reflect reflection reflexion reform refrain refresh refreshment refund refute reinforce reject remember remind removal remove renaissance renew repay repeat repeatedly repel repetition replace replacement represent representative repression reproduce respect respond response responsibility responsible restore resume return reunion revise revive 17 co col com con cor with together co existence cooperative co author coalition coherent coincide coincidence collaboration colleague collide collision collocation compassion compassionate concentric confederation conjoin coordinate correlate correlation correspond 18 inter between among interchange interchangeable interdependent interpersonal interview interact interaction intercourse interface interfere interference Internet interrupt interval intervene 19 macro large macroeconomics macrocosm macrostructure 20 micro extremely small microcomputer microeconomics microscope microphone microsurgery microelectronics microbiologist 21 super greater or more than super supermarket supersonic superman superpower supernatural supervise superb superficial superintendent superior superiority supreme supersystem 22 sur more than beyond surplus surtax surface surpass surround survival survive suspect 23 ultra beyond very too ultramodern ultrasound ultra violet 24 auto of or by oneself auto autocriticism autoland automobile automation automatic autobiography autonomous autonomy 25 mal bad badly malfunction maltreat malnutrition malpractice 26 tele at or over a long distance by or for television telegram television telegraph telephone telecommunications telescope telescreen teleswitch televise 28 semi hemi half semicircle semiconductor semi colony semifinal hemisphere 29 uni mono one uniform unify union unique unit unite unity universe universal university monologue monoplane monopoly monotone monotonous carbon monoxide 30 bi di two biweekly bicycle bilateral billion bilingual dialogue carbon dioxide 31 tri three tricycle triangle triangular trilogy triple trigonometry 32 quadri quadru four quadruple quadrangle 33 penta five pentagon Pentagon Pentium 34 hexa six hexagon hexangular mill thousand millennium millimeter 35 sept seven September Sept Wolves nona nine nonagon November 36 octa eight octagon octave octopus October 38 deci deca ten decade decimal 39 centi hundredth part centigrade centimeter centipede century 40 kilo thousand kilo kilometer kilogram me kilowatt 42 multi many multipurpose multinational multiple multiply multitude 43 counter anti contra opposite against counteract counterattack counterclockwise counterrevolutionary antibiotic antigravity antimatter antiwar antinuclear contradict contradiction contramissile contranatural contrary contrast anticonsumerism 44 mini smallest short minibus miniskirt minimum minister ministry minor minority minute 45 max greatest maximum maximal maximize 46 out outside beyond outdo outwit outlive outnumber outdoor outstanding outskirts outward 3 outcome outer outing outline outlook output outrage outside 47 over too much above additional overwork overuse overtake overpass overthrow overturn overall overdue overhead overhear overlook overseas overtime 48 trans across on or to the other side of transaction transatlantic transcend transfer transform transistor transit transition translate translation transmission transmit transmitter transparent transplant transport transportation 49 under too little below underdevelop underdevelopment underestimate undergraduate underground underlie underline undersea underlying undermine underneath underwear 50 neo new neo Nazism neolithic 51 be cause to be or have befriend belittle 52 bio life biology biography autobiography antibiotic biochemistry biosphere biomedical 5