Words to Describe envelopes

How envelopes often is described ("________ envelopes")

• nuclear
• empty
• gaseous
• embryonic
• closed
• circumstellar
• red
• smaller
• big
• blank
• colored
• white
• fat
• official
• bacterial
• several
• square
• old
• convective
• pink
• wrong
• floral
• small
• heavy
• used
• outer
• size
• padded
• open
• yellow
• cornified
• sealed
• weekly
• transparent
• opaque
• thick
• membranous
• concentric
• respective
• brown
• unsealed
• green
• thin
• bulky
• tiny
• double
• viral
• torn
• stuffed
• sized
• cellophane
• protective
• separate
• larger
• stellar
• printed
• extended
• plastic
• inner
• fibrous
• large
• successive
• paid
• rich
• franked
• special
• gelatinous
• blue
• individual
• unopened
• plain
• stamped
• standard
• complex
• unmarked
• isolated