solid, rigid, firm, stiff, tough, robust

solid, strong, robust, firm, sturdy, durable

solid, massive

fixed, constant, steady, stable, firm, solid

rigid, solid, static, hard, indeclinable, immobile

firm, solid, sound, stable, steadfast, rooted

coherent, cohesive, consistent, solid, concrete, tenacious

wonderful, elegant, gorgeous, fabulous, superb, solid

airtight, secure, compact, precise, strong, solid

harsh, cruel, severe, hard, tough, solid

hard, solid, firm, stiff, concrete, inflexible

solid

unbroken, unremitting, unceasing, solid

thick, stout, solid

unanimous, solid

sober, solid, thoughtful, serious, staid, equable

solid, tight, tightly bound

firm, stable, steady, stiff, solid, settled

solid