sissified (adj.)

• afraid
• breakable
• brittle
• chicken
• chickenhearted
• cobwebby
• cowardly
• crumbly
• dainty
• daunted
• delicate
• dismayed
• effeminate
• epicene
• fainthearted
• fearful
• flimsy
• fragile
• frail
• frangible
• funky
• gimcrack
• intimidated
• jerry-built
• light
• lightweight
• lily-livered
• mousy
• namby-pamby
• old-womanish
• panicky
• papery
• prissy
• puny
• sissy
• sissyish
• sleazy
• slight
• soft
• tacky
• timid
• timorous
• unmanly
• unmanned
• unsubstantial
• weak
• weak-kneed
• white-livered
• wispy
• womanish
• yellow