Princeton's WordNet
firm, steady, unfluctuatingadjective
not liable to fluctuate or especially to fall
Synonyms:
loyal, fast(a), stiff, unfluctuating, fast, unshakable, unfaltering, truehearted, unbendable, steadfast, solid, unwavering, regular, steady, firm, immobile, strongAntonyms:
unstable
© Synonyms.com