spontaneous - samovolný (potrat, výbuch, ap.)
BrE
/spɒn'teɪniəs/
AmE
/spɑ:n'teɪniəs/

adjective, technical - happening naturally without being caused by something outside it

 
mutate - mutovat (geneticky)
BrE
/mju:'teɪt/
AmE
/'mju:teɪt/

verb, technical - to develop a new form because of a permanent change in the genes

 
mutate - přeměnit se
BrE
/mju:'teɪt/
AmE
/'mju:teɪt/

verb - to change into something different

prankster
prankster - šprýmař, vtipálek (dělající kanadské žertíky)
BrE
/'præŋkstə/
AmE
/'præŋkstər/

noun - someone who plays tricks or practical jokes on people to make them look stupid

cowardice
cowardice - zbabělost
BrE
/'kaʊədɪs/
AmE
/'kaʊərdɪs/

noun - the lack of courage or bravery

practical joke
practical joke - kanadský žertík
BrE
/ˌpræktɪkl'dʒəʊk/
AmE
/ˌpræktɪkl'dʒoʊk/

noun - a trick that is played on someone to make them look stupid or shock them them so that other people laugh

counterfeit
counterfeit - padělek, napodobenina
BrE
/'kaʊntəfɪt/
AmE
/'kaʊntərfɪt/

noun, formal - something that is made to look like the original in order to deceive people

 
incurable - nevyléčitelný
BrE
/ɪn'kjʊərəbl/
AmE
/ɪn'kjʊrəbl/

adjective - cannot be cured

 
frivolous - lehkovážný, rozpustilý
BrE
/'frɪvələs/
AmE
/'frɪvələs/

adjective - behaving in a silly way when such behaviour is not suitable

 
narrow-minded - úzkoprsý, omezený
BrE
/ˌnærəʊ 'maɪndɪd/
AmE
/ˌnærəʊ 'maɪndɪd/

adjective - unwilling to listen to ideas that are different from your own

 
explicitly - otevřeně, přímo
BrE
/ɪk'splɪsɪtli/
AmE
/ɪk'splɪsɪtli/

adverb - expressed clearly and openly

dilapidated
dilapidated - zchátralý
BrE
/dɪ'læpɪdeɪtɪd/
AmE
/dɪ'læpɪdeɪtɪd/

adjective - old and in bad condition

 
compulsive - notorický, chorobný
BrE
/kəm'pʌlsɪv/
AmE
/kəm'pʌlsɪv/

adjective - doing something a lot and unable to stop

 
stuck-up - namyšlený, nafoukaný, domýšlivý
BrE
/ˌstʌk'ʌp/
AmE
/ˌstʌk'ʌp/

adjective, informal - too proud and unfriendly because they think they are better than others

snoot
snoot - nafoukanec, nadutec, domýšlivec
BrE
/'snu:t/
AmE
/'snu:t/

noun, informal - a person who thinks they are better than others