substantial, fundamental, essential, material, intrinsic, radical

essential, fundamental, primary, major, main, substantial

real, genuine, true, actual, authentic, substantial

solid, strong, robust, firm, sturdy, substantial

necessary, indispensable, needful, requisite, substantial

material, physical, materialistic, concrete, tangible, substantial

important, substantial, serious, paramount, leading, remarkable

rich, wealthy, prosperous, substantial, opulent, privileged

substantial

luxurious, stately, grand, palatial, sumptuous, substantial

rich, wealthy, opulent, affluent, loaded, substantial

substantial

notable, privileged, reputed, weighty, worthy, substantial