(South African) Of or belonging to a population grouping made up of persons of mixed racial descent or of certain other nonwhite descent, especially as distinguished during apartheid from blacks, Asians, or whites.
Not likely; improbable; not to be reasonably expected; as, an unlikely event; the thing you mention is very unlikely. Not holding out a prospect of success; likely to fail; unpromising; as, unlikely means.
Credible
is used of that which is believable because it is supported by evidence, sound logic, etc. a credible account
Plausible
applies to that which at first glance appears to be true, reasonable, valid, etc. but which may or may not be so, although there is no connotation of deliberate deception a plausible argument
Specious
applies to that which is superficially reasonable, valid, etc. but is actually not so, and it connotes intention to deceive a specious excuse
Find another word for specious. In this page you can discover 52 synonyms, antonyms, idiomatic expressions, and related words for specious, like: deceptive, unsound, gilded, hollow, misleading, tendentious, sophistry, false, unphilosophical, colored and glossy.
William of Orange was not deceived by the specious temporizing of the king.
But Mary had, under a specious pretext, recommenced to a slight extent the evil practice, and Elizabeth had gone a little further in the same direction.
In 1850 his power of specious argument won back to him his Chicago constituents who had violently attacked him for not opposing the Fugitive Slave Law.
The rush of the Mahommedan flood sent terror all over Europe, but the little opposition it encountered south of the Pyrenees is to be easily explained, and the victory, though genuine, was more specious than substantial.