This is the 511th most frequent Hungarian word.
halálos
Deadly; fatal.
The word 'halálos' is used to describe something causing death.
Ez a méreg halálos lehet, ha fogyasztják.
This poison can be fatal if consumed.
Here, 'halálosan' is used metaphorically to emphasize a strong degree of precision.
A humorérzéke halálosan pontos.
His sense of humor is deadly accurate.
In this sentence, 'halálos' metaphorically conveys a serious and critical nature.