G5467 χαλεπός (chalepós)

KJV renderings: fierce, perilous
Strong's definition: difficult, i.e. dangerous, or (by implication) furious
Derivation: perhaps from G5465 (χαλάω) through the idea of reducing the strength;

From James Strong's public-domain dictionaries (G), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.