1. In a youthful manner
   "he is still youthfully enthusiastic"

See also: youthful

• Helianthus maximilianii
• Helianthus petiolaris
• Helianthus tuberosus
• helical
• Helichrysum
• Helichrysum bracteatum
• Helichrysum secundiflorum
• Helicidae
• helicoid
• helicon
• helicopter
• helicopter view
• Helicteres
• Helicteres isora
• helio-
• Heliobacter
• Heliobacter pylori
• heliocentric
• heliocentric parallax
• heliogram
• heliograph
• heliographic
• heliogravure
• heliolatry
• heliometer