abstruse /ab-stroosˈ/

1. Difficult to understand
2. Remote from apprehension
3. Hidden (archaic)

abstruseˈly adverb

abstruseˈness noun

• smoke ball
• smoke balls
• smoke-black
• smoke-blacks
• smokeboard
• smokeboards
• smoke bomb
• smoke bombs
• smokebox
• smokeboxes
• smoke bush
• smoke bushes
• smoke-consumer
• smoke-consumers
• smoke control area
• smoke control areas
• smoked
• smoke detector
• smoke detectors
• smoke-dried
• smoke-dries
• smoke-dry
• smoke-drying
• smoke-filled room
• smoke-filled rooms