adverb
haphazardly, any old how
“Atrasados y toscos en todo, nuestras criminales matan con planchas, al tuntún, sin preparar emboscadas, ni escribir cartas sutiles” — Backward and rude in everything, our criminals kill with slabs, haphazardly, without preparing ambushes, or writing subtle letters
Synonyms: a voleo, sin ton ni son