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 यादृच्छिक
यादृच्छिकyādṛcchikaa.(-की f.)
(-कीFeminine)
Voluntary, spontaneous, independent.
Accidental, unexpected.
Acting as one likes (स्वेच्छाचारी); (आमन्त्र्य) वीणां रणयन् ययौ यादृच्छिको मुनिः Bhāg.1.7.38.