Unaccustomed/ˌʌnəˈkʌstəmd/ Definition 1 of 2Pro Tip 1/3Subtle Discomfort Implies a slight discomfort or awkwardness due to unfamiliarity. Being unaccustomed to spicy food, his eyes watered with each bite. Pro Tip 2/3Not Habitual Highlights the absence of a habit or routine, rather than a complete lack of experience. She felt unaccustomed to waking up so early for the new job. Pro Tip 3/3Culture Shock Can describe feeling out of place due to different cultural practices. Travelers often feel unaccustomed to local traditions when abroad.