What is another word for "latency"?

Roget's Thesaurus (1911) lists these synonyms for "latency": abeyance, anagram, arcanum, behind, blind, blunt, blush, book, born, charade, conceal, concealed, concealment, confidential, conundrum, covered, covert, crack, crux, curtain, dark, dead, delitescence, delitescent, difficulty, dim, dormant, dull, dullness, eclipse, enigma, escape, faint, fire, flat, flower, focus, full, fuzzy, gas.