English-Thai Dictionary

optional

ADJ ซึ่ง เป็น ทางเลือก  sueng-pen-tang-luek

 

Webster's 1828 Dictionary

OPTIONAL

a. 1. Left to one's wish or choice; depending on choice or preference. It is optional with you to go or stay.
2. Leaving something to choice.
Original writs are either optional or peremptory.

 

Webster's 1913 Dictionary

OPTIONAL

OPTIONAL Op "tion *al, a.

 

Defn: Involving an option; depending on the exercise of an option; left to one's discretion or choice; not compulsory; as, optional studies; it is optional with you to go or stay. -- n.

 

Defn: See Elective, n. If to the former the movement was not optional, it was the same that the latter chose when it was optional. Palfrey. Original writs are either optional or peremptory. Blackstone.

 

OPTIONALLY

OPTIONALLY Op "tion *al *ly, adv.

 

Defn: In an optional manner.

 

New American Oxford Dictionary

optional

op tion al |ˈäpSHənl ˈɑpʃənl | ▶adjective available to be chosen but not obligatory: a wide range of optional excursions is offered. DERIVATIVES op tion al i ty |ˌäpSHəˈnalitē |noun, op tion al ly adverb

 

optional extra

op |tion ¦al extra ▶noun a non-essential additional item which is available for purchase.

 

Oxford Dictionary

optional

op |tion ¦al |ˈɒpʃ (ə )n (ə )l | ▶adjective available to be chosen but not obligatory: a wide range of optional excursions is offered. DERIVATIVES optionality |-ˈnalɪti |noun, optionally adverb

 

optional extra

op |tion ¦al extra ▶noun a non-essential additional item which is available for purchase.

 

American Oxford Thesaurus

optional

optional adjective in senior year, phys ed is optional: voluntary, discretionary, not required, elective, noncompulsory, nonmandatory; Law permissive; rare discretional. ANTONYMS compulsory, mandatory, required.

 

Oxford Thesaurus

optional

optional adjective registration was obligatory but voting was optional: voluntary, non-compulsory, at one's discretion, discretionary, not required, up to the individual, elective, non-mandatory, free, open, unforced; Law permissive; rare discretional. ANTONYMS compulsory, obligatory, mandatory, required.

 

Duden Dictionary

optional

op ti o nal Adjektiv Fachsprache |option a l |englisch optional nicht zwingend; fakultativ

 

Sanseido Wisdom Dictionary

optional

op tion al /ɑ́pʃ (ə )nəl |ɔ́p -/形容詞 自分で選べる, 随意 [任意 ]の (↔mandatory , compulsory )▸ optional English subtitles 英語字幕オプション .～̀ é xtra (標準装備外の )オプション品 .