1. In an impressive manner
   "the students progressed impressively fast"
   - imposingly

See also: impressive

Antonym: unimpressively

• actinide
• actinide series
• Actinidia
• Actinidia arguta
• Actinidia chinensis
• Actinidia deliciosa
• Actinidia polygama
• Actinidiaceae
• Actiniopteris
• actinism
• actinium
• actinoid
• actinolite
• Actinomeris
• Actinomeris alternifolia
• actinometer
• actinometric
• actinometrical
• actinometry
• actinomorphic
• actinomorphous
• actinomyces
• Actinomycetaceae
• actinomycetal
• Actinomycetales