1threatening to do something bad or to hurt someone
baleful
2done secretly, without anyone seeing or knowing
surrepticious
3a humorous and clever remark
quip
4to be the father of/to cause
beget
5to kill all the animals or people in a particular place or of a particular type
exterminate
6a person sent by one government or political leader to another to take messages or to take part in discussions
emissary
7to push away or refuse something or someone unwanted, especially to successfully stop a physical attack against you
repulse
8a part of a city or a town in which vehicles are not allowed, used for a special purpose, such as shopping
precinct
9a low metal frame around an open fireplace that stops the coal or wood from falling out
fender
10a person who tells fibs
fibber
11pleasant mental or physical tiredness or lack of activity
languor