flaccid (
http://definr.com/flaccid)
adj 1: lacking in strength or firmness or resilience; "flaccid
muscles"; "took his lax hand in hers"; "gave a limp
handshake"; "a limp gesture as if waving away all
desire to know" G.K.Chesterton; "a slack grip" [syn:
lax,
limp,
slack]
2: lacking firmness or stiffness; "flabby around the middle";
"flaccid cheeks" [syn:
flabby]