Definitions: (1) informal, natural; (2) showing little concern; nonchalant

Too Far: capricious

• It’s a rare moment when we take a break from the tribulations of the daily rat race to reflect on assumptions and values that we casually accept as gospel. — Edward Graydon Carter (1949-) Canadian Journalist
• A human being becomes human not through the casual convergence of certain biological conditions, but through an act of will and love on the part of other people. — Italo Giovanni Calvino (1923-1985) Italian writer