toughly
adverb /ˈtʌfli/
  /ˈtʌfli/
- in a way that demands that particular rules be obeyed and shows a lack of sympathy for any problems or difficulty that this may cause- a toughly worded ultimatum
- We need to react toughly against those who were harbouring terrorists.
 
- in a way that shows somebody is strong or determined - a toughly contested game