regardless regardless /rəˈgɑːrdləs/

adjective

1. (usually followed by 'of') without due thought or consideration  ( careless , regardless )
   (usually followed by 'of') without due thought or consideration
    Careless of the consequences
   careless of the consequences
    Crushing the blooms with regardless tread
   crushing the blooms with regardless tread
   

adverb

1. () In spite of everything; without regard to drawbacks  ( disregarding , disregardless , irrespective , no matter , regardless )
   in spite of everything; without regard to drawbacks
    He carried on regardless of the difficulties
   he carried on regardless of the difficulties