1. Open to doubt or suspicion
   - doubtful, dubious, dubitable, in question 
2. [archaic] Inspiring fear
   - formidable, redoubtable, unnerving

See also: alarming, questionable

• encase
• encased
• encasement
• encash
• encashment
• encaustic
• enceinte
• Encelia
• Encelia farinosa
• Enceliopsis
• Enceliopsis nudicaulis
• encephalartos
• Encephalartos caffer
• encephalic
• encephalitis
• encephalitis lethargica
• encephalo-
• encephalocele
• encephalogram
• encephalography
• encephalomeningitis
• encephalomyelitis
• encephalon
• encephalopathy
• enchain