HinKhoj Dictionary

taxonomy - वर्गीकरण विज्ञान (a classification of organisms based on similarities)
ostentation - आडम्बर (pretentious or showy or vulgar display)
grubby - धूलमय (thickly covered with ingrained dirt)
disingenuous - कपटी (not straightforward or candid)
iffy - अनिश्चित (subject to accident or chance or change)