Meaning of (विनिश्चायक) vinishchayak in english
As adjective :
decisive Ex:  These both turned out to be decisive factors in forming modern science
Suggested : having the power or quality of deciding putting an end to controversy crucial or most important
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(विनिश्चायक) vinishchayak
can be used as adjective.. No of characters: 10 including consonants matras.
Transliteration :
vinishchaayaka