Synonyms for Spongelike (same or very similar meaning)
WordNet sense 1 (easily squashed; resembling a sponge in having soft porous texture and compressibility):
spongy, squashy, squishyWordNet sense 2 (yielding readily to pressure or weight):
softWordNet sense 3 (having power or capacity or tendency to absorb or soak up something (liquids or energy etc.)):
absorbent, absorptiveFrom the ODE community, based on WordNetadd/edit