1. With fatal consequences or implications
   "he was fatally ill equipped for the climb"
   - lethally

See also: fatal

• hydrazoic acid
• hydrazoite
• hydremia
• hydric
• hydride
• hydrilla
• Hydrilla verticillata
• hydriodic acid
• hydro
• Hydrobates
• Hydrobates pelagicus
• Hydrobatidae
• hydrobromic acid
• hydrocarbon
• hydrocele
• hydrocephalic
• hydrocephalus
• hydrocephaly
• Hydrocharidaceae
• Hydrocharis
• Hydrocharis morsus-ranae
• Hydrocharitaceae
• hydrochloric
• hydrochloric acid
• hydrochloride