V. S. Apte, The Practical Sanskrit–English Dictionary. Look up any word of the Gita in Devanagari, IAST or Harvard-Kyoto, or browse the headwords letter by letter.
Entry निश्चल
निश्चलniścalaङ्गः) a species of crane.
ङ्गः) a species of crane.
a rock or mountain.
Derived forms and compounds
निश्चलniścala, Adjective
Immovable, steady, fixed, still.
Invariable, unchangeable; श्रुतिविप्रतिपन्ना ते यदा स्थास्यति निश्चला Bg.2.53.