Translation Japanese English: 堅固

1 absolute, impregnable, infrangible, inviolable, inviolate, sacrosanct, secure, strong, unassailable, unattackable.

2 bad, beefy, big, brawny, buirdly, burly, compact, forte, full-blooded, hard, hardy, harsh, hearty, heavy, heavyset, hefty, husky, loud, lusty, muscular, potent, powerful, red-blooded, sinewy, solid, stalwart, stocky, stout, strapping, strong, sturdy, substantial, thick, thickset, tough, warm.

3 bad, big, firm, hard, harsh, impregnable, intense, inviolable, mighty, potent, powerful, resistant, robust, secure, solid, steadfast, steady, stiff, strong, substantial, tolerant, tough, toughened, unassailable, unattackable, unbendable, unfaltering, unshakable, unwavering.

4 buckram, contrary, dependable, fast, firm, formal, good, hard, honest, impregnable, inviolable, loyal, obstinate, perverse, reliable, rigid, safe, secure, solid, starchy, steadfast, steady, stiff, strong, tight, tough, toughened, true, truehearted, unassailable, unattackable, unbendable, unfaltering, unshakable, unwavering, wayward.

5 buckram, contrary, dependable, fast, firm, good, hard, honest, impregnable, inviolable, loyal, obstinate, perverse, reliable, rigid, safe, secure, solid, starchy, steadfast, steady, stiff, strong, stubborn, sure, tough, toughened, true, truehearted, unassailable, unattackable, unbendable, unfaltering, unregenerate, unshakable, unwavering, wayward.

6 bulletproof, impregnable, inviolable, secure, strong, unassailable, unattackable, unshakable, untouchable, watertight.

7 conceptive, impregnable, inexpugnable, inviolable, secure, strong, unassailable, unattackable.

8 concrete, firm, massive, monolithic, solid, strong, substantial, unanimous, whole.

9 dependable, good, impregnable, inviolable, protected, safe, secure, strong, unafraid, unassailable, unattackable, untroubled.

10 durable, firm, lasting, long-lasting, long-lived, robust, solid, strong, substantial, well.

11 firm, hard, impregnable, inviolable, potent, secure, solid, stiff, strong, substantial, unassailable, unattackable, warm.

12 firm, hardy, impregnable, inviolable, secure, solid, stalwart, stout, strong, sturdy, tough, toughened, unassailable, unattackable.

13 firm, hearty, satisfying, self-colored, self-coloured, solid, square, strong, substantial, unanimous, upstanding, whole.

14 firm, impregnable, inflexible, inviolable, secure, steadfast, steady, stiff, strong, sturdy, unassailable, unattackable, unbendable, uncompromising, unfaltering, unshakable, unwavering.

15 firm, impregnable, inviolable, rigid, secure, sound, steadfast, steady, stiff, strong, unassailable, unattackable, unbendable, unfaltering, unshakable, unwavering.

16 hardy, impregnable, inviolable, obstinate, robust, secure, stalwart, stout, strong, stubborn, sturdy, tough, toughened, unassailable, unattackable, unregenerate.

17 hearty, material, real, satisfying, significant, solid, square, strong, substantial, substantive.

18 impregnable, inviolable, peaceable, peaceful, secure, strong, unafraid, unassailable, unattackable, untroubled.