IPA: //ˈtʃæn.si//
KK: /ˈtʃænsi/
More risky or uncertain than something else.
Investing in that startup is chancier than putting your money in established companies.
Comparative: chancier
Superlative: chanciest
Chancier is derived from the word 'chance' (from Old French *chance*, meaning fortune or luck) and the suffix '-ier' (meaning one who). The word 'chancier' refers to someone who takes risks or engages in activities involving chance.
Think of 'chance' as relating to luck or fortune, and remember that 'chancier' describes someone who is involved in taking risks.