Synonym: elective, voluntary. Antonym: compulsory. Similar words: exceptional, exceptionally, option, adoption, proportional representation, international relations, nationalization, rationalization. Meaning: ['ɑpʃənl /'ɒp-] adj. possible but not necessary; left to personal choice.
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271. The M 2002 provides the trickle - charge and the optional top - off charge to maximize the battery capacity.
272. During a connection establishment or instance attachment, user IDs and passwords are optional.
273. Another important ground rule is that participation in exercises during a retrospective is optional.
274. The parallel forEach construct has an optional feature -- a completionCondition that can be used to terminate the forEach construct before completing all parallel loop instances.
275. The relationship is optional, which means the customer will not always have an open order.
276. Adopting peak detection, comparison decision and impulse extension sampling, this method can be an optional scheme for lowering sample rate and system realization cost.
277. You may continue repeating steps 3 and 4 to copy the installation CDs for these optional features into your temporary directory.
278. Operator interface has optional hands free aligning and pulse triggering.
279. Secret Key: optional set of symbols which you entered when setting your purse ( see above ).
280. Download all required parts -- and any optional parts that you choose -- to the same temporary directory.
281. This parameter is optional and can be specified as a string, integer(Sentencedict.com), or hexadecimal value corresponding to the LCID of a language.
282. Expandable to Multi - Room Wireless Audio with Optional SH - FX 85 Wireless Kit.
282. Sentencedict.com try its best to collect and build good sentences.
283. As required, it is optional for automatic timing, automatic braking and revolving speed.
284. The optional wind deflector minimizes drafts and wind turbulence, eliminating wind chill and maximising comfort.
285. Additionally, a usage of the requirement can also be set as required, optional, or prohibited through the use attribute (the default value is required).
286. It'should include sex of emulative, optional choose, history inheritance and but representative.
287. Under some constraint conditions, a procedure to get the optional position of connected objects.
288. Leather - covered seats were an optional extra, for instance - the standard seat covers were made of quality velour.
289. Both approaches accomplish essentially the same thing: adding an optional field.
290. Optional equipment that adds weight to your car can decrease your gas mileage (especially heavy options such as four-wheel drive).
291. The parameter declaration is identical for optional and mandatory parameters.
More similar words: exceptional, exceptionally, option, adoption, proportional representation, international relations, nationalization, rationalization, multinational corporation, constitutional convention, rational, national, emotional, rationally, fictional, educational, operational, additional, functional, positional, irrational, conditional, rationalize, rationality, irrationally, rationalism, nationalism, promotional, nationalize, vibrational.