flaccid
1. [ adjective ] lacking in strength or firmness or resilience
Synonyms: limp slack lax
Examples:

"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"

Related terms: weak
2. [ adjective ] lacking firmness or stiffness
Synonyms: flabby
Examples:

"flabby around the middle" "flaccid cheeks"

Related terms: soft
Similar spelling:   flaccidity
  flecked
  flection