1. Showing sustained enthusiastic action with unflagging vitality
   - indefatigable, tireless, unflagging

See also: energetic

• variola minor virus
• variola vaccina
• variola vaccine
• variola vaccinia
• variola virus
• variolar
• variolation
• variolic
• variolisation
• variolization
• variolous
• variometer
• variorum
• variorum edition
• various
• variously
• variously-leaved pondweed
• varistor
• varix
• varlet
• varment
• varmint
• varna
• varnish
• varnish tree