ominous /omˈi-nəs/

1. Relating to, or containing, an omen
2. Portending evil
3. Inauspicious

omˈinously adverb

• back-projection
• back-projections
• backra
• backras
• back rest
• back rests
• backronym
• backronyms
• back room
• backroom
• back rooms
• back-rope
• back row
• back-row
• back rows
• backs
• backsaw
• backsaws
• backscatter
• backscattered
• backscattering
• backscatters
• backscratch
• backscratched
• backscratcher