crumbly (adj.)

• breakable
• brittle
• cobwebby
• crisp
• crispy
• dainty
• delicate
• effeminate
• fissile
• flimsy
• fragile
• frail
• frangible
• friable
• gimcrack
• jerry-built
• light
• lightweight
• namby-pamby
• papery
• puny
• rubbery
• shivery
• sissified
• sleazy
• slight
• splintery
• tacky
• unsubstantial
• vulnerable
• wispy
• womanish