de-feasible (adjective) ineffective/ineffectual: weak, useless
Sinonime: bendability, bendableness, compactness, density, elasticity, fabric, firmness,
flexibility, frangibility, hardness, limberness, moldability, organization, plasticity, pliability, softness, solidity, suppleness, texture, viscidity, viscosity, viscousness
Antonime: competent,
effective,
effectual,
efficient,
powerful,
strong,
useful