Prefixes : can be added to some words to give them a negative meaning


un : is the most common // unfriendly , unusual , unnecessary, unemployed, untidy or unkind
in : is often used before words with a Latin origin // invisible, informal or inadequate
im : is used before some words beginning with M or P // impolite, impossible, immoral or impatient
il : can be used before L // illegible
ir : is only used before a few words beginning with R // irresponsible
dis : is used before some adjectives // dishonest .. and a few verbs ( dislike or disagree