1) Attach colour in layers 2) Having multiple layers 3) Having or arranged in tiers 4) Having rows 5) Having terraces 6) In layers 7) In rows 8) Kind of seating 9) Layer 10) Layered 11) Layered, like a wedding cake 12) Like a stadium 13) Like a wedding cake 14) Like big wedding cakes 15) Like carnegie hall 
[adj] - having or arranged in tiers
adjective having or arranged in tiers; `a tiered mound`