1) Adhesive 2) Bad 3) Crappy 4) Gooey 5) Lousy 6) Rotten 7) Shitty 8) Stinking 9) Stinky 1) Cloyingly sweet 2) Cloyingly sweet, slang 3) Covered in slime 4) Crappy 5) Disgusting 6) Disgusting, to a child 7) Disgusting, to a kid 8) Distasteful 9) Excessively sentimental 10) Exclusively Saxon word 11) Exclusively Anglo word 12) Far from appetizing 13) Goo-ish 14) Gooey or gluey 15) Grody 
Icky is slang for distasteful, unpleasant.
[adj] - (informal) very bad
crappy adjective very bad; `a lousy play`; `it`s a stinking world`
repulsive or distasteful. · excessively sweet or sentimental. · unsophisticated or old-fashioned. · sticky; viscid.