Words to Describe headroom

How headroom often is described ("________ headroom")

• extra
• comfortable
• foot
• necessary
• greater
• adequate
• bare
• reasonable
• usable
• inadequate
• inch
• clear
• much
• consistent
• seat
• more
• less
• additional
• interior
• little
• appropriate
• enough
• sufficient
• maximum
• genetic
• minimal
• full
• restricted
• excessive
• low
• reduced
• minimum
• scant
• overall
• considerable
• insufficient
• rear
• available
• fiscal
• unlimited
• ample
• optimum
• proper
• generous
• dynamic
• limited