Answer Key

Prefixes (2)

Use the words in brackets to form adjectives, nouns and verbs with the help of prefixation.
  1. The ultra-right wing party has  [enlisted] (list) over 1,000 new members in just two weeks. 
  2. Although no one had mentioned  [overthrowing] (throwing) the monarchy, the  [unspoken] (spoken) was apparently understood by all. 
  3. The company decided to  [preannounce] (announce) the coming takeover of its competitor. They issued a press release one month in advance. 
  4. The market has had a shortage of the material in the last three years. By the end of this year, it will be facing a critical  [undersupply] (supply)! 
  5. Read the instructions first. This  [pre-activation, preactivation] (activation) kit is appropriate for systems with a BIOS mod or systems that require a boot loader to activate. 
  6. In the end, the girls  [outnumbered] (number) the boys three to one. 
  7. Ok, I concede, those were all interesting points. But are these  [nonexpert, non-expert](expert) usability evaluation comments of any value? Can they really evaluate all this hi-tech stuff? 
  8. The jumper was so worn-out that it completely  [disintegrated] (integrate) in the washing machine. 
  9. Children, teenagers and some adults may need protection from childish emotions, [immature] (mature) behavior and impulsive decisions. 
  10.  [subzero] (zero) temperatures  [enabled] (able) the operators of mountain ski complexes to start producing artificial snow. 

Common adjective prefixes

In- Inaccurate, incorrect, indecent
Il- Illegal, illegible, illiterate
Ir- Irrelevant, irreplaceable, irrational
Im- Immoral, immature, impatient
Un- Uncomfortable, unjust, unfair
Non- Non-political, non-verbal, non-existent
Dis- Dissatisfied, disorganized, disqualified
Sub- Subconscious, substandard, suburban
Hyper- Hyperactive, hypercritical, hyperdynamic

Common noun prefixes

Non- Non-smoker, nonentity, non-event
Dis- Disappearance, disqualification, disability
Mis- Misprint, misfortune, misadventure
Co- Co-pilot, co-driver, co-author
Ex- Ex-husband, ex-wife, ex-mayor,
Re- Resettlement, reconstruction, restoration
Over- Overweight, overinvestment, overconsumption
Under- Underweight, underboss, undersupply
Pre- Preconception, pre-diagnosis, pre-activation
Sub- Subcontractor, subway, submarine

Common verb prefixes

Over- Overthrow, overeat, overwork
Under- Undercook, underline, undercharge
En- Encourage, endanger, enslave
Un- Unpack, unwrap, undo
De- Defrost, decode, deconstruct
Re- Redecorate, reassure, rebuilt,
Pre- Prearrange, preannounce, preconceive
Dis- Disconnect, discourage, discredit
Fore- Foresee, forecast, foretell
Out- Outnumber, outlive, outperform