customary

UK: /ˈkʌstəməri/ US: /ˈkʌstəˌmɛri/ ,(kus′tə mer′ē)

Inflections of 'customary' (n): npl: customaries

WordReference Random House Learner's Dictionary of American English © 2025

cus•tom•ar•y /ˈkʌstəˌmɛri/  adj. 

1. according to or depending on custom; expected by custom:
   the customary, once-a-month meeting.
   [it + be + ~ + for + object]
   It is customary for many Americans to send greeting cards around Christmas.
2. (of behavior, etc.) habitual;
   usual:
   [before a noun] his customary cup of coffee.

cus•tom•ar•i•ly /ˈkʌstəˌmɛrəli;
for emphasis, ˌkʌstəˈmɛrəli/  adv.: 

She is customarily late for meetings.

WordReference Random House Unabridged Dictionary of American English © 2025

cus•tom•ar•y  (kus′tə mer′ē), adj., n., pl. -ar•ies. 
adj. 

1. according to or depending on custom; usual;
   habitual.
2. of or established by custom rather than law.
3. Law defined by long-continued practices:
   the customary service due from land in a manor.

n. 

4. Law a book or document containing the legal customs or customary laws of a locality.
5. Law any body of such customs or laws.

• Medieval Latin custumārius, customārius, equivalent. to costum(i)a custom (also in Vulgar Latin; see custom) + -ārius -ary
• 1375–1425; 1515–25 for current senses; late Middle English

cus•tom•ar•i•ly  (kus′tə mer′ə lē;
for emphasis, kus′tə mâr′ə lē), adv.  Synonyms

• 1. wonted, accustomed, conventional, common, regular. See usual. 

Antonyms

• 1. uncommon.

Collins Concise English Dictionary © HarperCollins Publishers::

customary / ˈkʌstəmərɪ -təmrɪ/ adjective

1. in accordance with custom or habitual practice; usual; habitual
2. founded upon long continued practices and usage rather than law
3. (of land, esp a feudal estate) held by custom

noun ( -aries)

1. a statement in writing of customary laws and practices

ˈcustomarily adverb

ˈcustomariness noun