Main entry: significant, substantial
Definition: fairly large
Usage: won by a substantial margin
Main entry: real, material, substantial
Definition: having substance or capable of being treated as fact; not imaginary
Usage: the substantial world; a mere dream, neither substantial nor practical; most ponderous and substantial things- Shakespeare
Main entry: substantial, substantive
Definition: having a firm basis in reality and being therefore important, meaningful, or considerable
Usage: substantial equivalents
Main entry: solid, substantial, strong
Definition: of good quality and condition; solidly built
Usage: a solid foundation; several substantial timber buildings
Main entry: satisfying, solid, square, hearty, substantial
Definition: providing abundant nourishment
Usage: a hearty meal; good solid food; ate a substantial breakfast; four square meals a day