adj. 25B6; adjective
make it understandable to the layman : COMPREHENSIBLE, intelligible, coherent, clear, explicit, unambiguous, transparent, plain, straightforward, digestible, user-friendly.
an understandable desire to be happy : UNSURPRISING, expected, predictable, inevitable; reasonable, acceptable, logical, rational, normal, natural; justifiable, justified, defensible, excusable, pardonable, forgivable.