roughly

rough +‎ -ly

• (UK, US) IPA^(key): /ˈɹʌf.li/

• Audio (US)

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roughly (comparative roughlier or more roughly, superlative roughliest or most roughly)

1. In a rough manner.
2. Unevenly

   Synonyms: harshly, rudely, severely, austerely

3. Imprecise but close to in quantity or amount; approximately.
   • 2013 December 6, Alok Jha, “A deadly disease could travel at jet speed around the world. How do we stop it in time?”, in The Guardian Weekly, volume 189, number 26, page 27:

     Of the roughly 400 emerging infectious diseases that have been identified since 1940, more than 60% are zoonotic: ie they came from animals. Throughout history this has been common.

• approximately, around, near, nearly, almost, about, loosely, circa

• Loughry