
1) Hardly decisive 2) Indecisive 3) Ineffectual 4) Lacking in decisiveness 5) Spineless 6) Without much of a backbone
Found on
https://www.crosswordclues.com/clue/wishy-washy

• (n.) A weak or thin drink or liquor; wish-wash. • (a.) Thin and pale; weak; without strength or substance; -- originally said of liquids. Fig., weak-minded; spiritless.
Found on
http://thinkexist.com/dictionary/meaning/wishy-washy/
Wish'y-wash`y adjective [ See
Wash .] Thin and pale; weak; without strength or substance; -- originally said of liquids. Fig., weak-minded; spiritless. « A weak
wishy-washy man who had hardly any mind of his own.»
A. Trollope. Found on
http://www.encyclo.co.uk/webster/W/43
No exact match found.