What is another word for "backwardness"?

Roget's Thesaurus (1911) lists these synonyms for "backwardness": alacrity, aversation, averseness, conscience, delicacy, demur, disinclination, dislike, dissent, hesitation, indifference, indisposedness, indisposition, indocility, irresolution, nolition, nolleity, obstinacy, qualm, readiness, recoil, refusal, reluctance, renitence, renitency, scruple, scrupulosity, shrinking, slowness, twinge, want.