1. Hic… what does “prefix” mean? What is “unhappy”? Am I unhappy if I don’t understand the lesson?

2. PREFIXES prefix :a letter or group of letters added to the beginning of a word to change its meaning Egg: happy ≠ unhappy productive ≠ unproductive possible ≠ impossible  un, = not Don’t worry!!! Formation: prefix + Noun/Verb/Adjective

3. Notes Prefixes are often used to give adjectives a negative meaning. Forposite of comfortable is “ uncomfortable”… Unfortunately, there is no easy way of knowing which prefix any adj will use to form its opposite  learn by heart In- becomes - before a root beginning with “m” or “p”, eg: impartial, immature. In- becomes ir- before a word beginning with “r”, and il- before a word beginning with “l”, eg: irreplaceable, illegal…

4. Examples: She is not happy= She is unhappy He is not loyal because he betrayed his companion = He is disloyal because…. They are not responsible for their work= They are irresponsible for their work

5. Some common prefixes: Un- : unlucky, unemployable… In- : indirect, indefinite… Im- : impossible, immature, impossibility… Dis- : discourage, disloyal, disadvantage… Ir- : irresponsible, irregular, irresponsibility…

6. Some other prefixes: Prefix meaning examples Anti against anti-war antisocial bi two, twice bicycle bilingual Ex former ex-wife ex-president Post after postwar postgraduate Mis badly/wrongly misunderstand mistranslate Over too much overdo oversleep Under not enough underestimate underworked

7. Wowww… I’m not unhappy anymore because I can understand what prefix means!!!