Accustom to Definition 1 of 2Pro Tip 1/3Process Takes Time Adapting to something new is generally a gradual process, not instant. You'll slowly accustom to the local dialect. Pro Tip 2/3Emotional Adjustment The phrase can imply emotional or psychological adaptation to new situations. It was hard to accustom to life without her. Pro Tip 3/3Different Contexts 'Accustom to' can be used in various contexts, like social norms, climates, or work routines. She had to accustom to waking up early for her new job.