accustomed meaning
EN
[ə.ˈkʌs.təmd] 
CA - Verb
- simple past tense and past participle of accustom.
- simple past tense and past participle of accustom.
- AdjectiveCOMmore accustomedSUPmost accustomed
- Familiar through use; usual; customary.
- Inured to; adapted to existing conditions.
- accustomed to walking long distances
- accustomed to cold
- OBS Frequented by customers.
- Familiar through use; usual; customary.
- More Examples
- Used in the Middle of Sentence
- I am not against drinking; however, if you are accustomed to overdrinking, it will be a serious problem.
- Used in the Middle of Sentence
Definition of accustomed in English Dictionary
- Part-of-Speech Hierarchy
- Adjectives
- Verbs
- Verb forms
- Participles
- Past participles
- Past participles
- Verb simple past forms
- Participles
- Verb forms
- Adjectives
Source: Wiktionary
Grammatically, this word "accustomed" is an adjective. It's also a verb, more specifically, a verb form.