à l'improviste /a lɛ̃-prō-vēstˈ/

1. Suddenly
2. Unexpectedly
3. Unawares

• asterisk
• asterisked
• asterisking
• asterisks
• asterism
• asterisms
• astern
• asteroid
• asteroidal
• Asteroidea
• asteroids
• asters
• astert
• asterted
• asterting
• asterts
• as the case may be
• as the crow flies
• as then
• asthenia
• asthenias
• asthenic
• asthenics
• asthenosphere
• asthenospheres