na-adjective, noun
severity; harshness; intensity
Describes something extremely severe, harsh, or intense, such as weather, criticism, or conditions. Often used in formal or literary contexts.
今年の夏の酷烈な暑さは記録的だった。
The intense heat this summer was record-breaking.
彼の酷烈な批判に、誰も反論できなかった。
No one could argue against his harsh criticism.