specious

As a noun creature

is (archaic|chiefly|literary|and|philosophy).

As an adjective specious is

seemingly well-reasoned, plausible or true, but actually fallacious.

In obsolete|lang=en terms the difference between foist and specious

is that foist is (obsolete) a light and fast-sailing ship while specious is (obsolete) beautiful, pleasing to look at.

As a verb foist

is to introduce or insert surreptitiously or without warrant.

As a noun foist

is a thief or pickpocket or foist can be (obsolete) a light and fast-sailing ship.

As an adjective specious is

seemingly well-reasoned, plausible or true, but actually fallacious.

As adjectives the difference between specious and quasi

is that specious is seemingly well-reasoned, plausible or true, but actually fallacious while quasi is resembling or having a likeness to something.

As adjectives the difference between specious and bogus

is that specious is seemingly well-reasoned, plausible or true, but actually fallacious while bogus is counterfeit or fake; not genuine.

As a noun bogus is

(us|dialect) a liquor made of rum and molasses.

As an adjective specious

is seemingly well-reasoned, plausible or true, but actually fallacious.

As a noun seasoning is

(cooking) something used to add taste or flavour to food, such as a condiment, herb or spice.

As a verb seasoning is

.

As adjectives the difference between specious and malicious

is that specious is seemingly well-reasoned, plausible or true, but actually fallacious while malicious is of, pertaining to, or as a result of malice or spite.

As a noun affectations

is .

As an adjective specious is

seemingly well-reasoned, plausible or true, but actually fallacious.

As an adjective specious

is seemingly well-reasoned, plausible or true, but actually fallacious.

As a noun proffer is

an offer made; something proposed for acceptance by another; a tender; as, proffers of peace or friendship.

As a verb proffer is

to offer for acceptance; to propose to give; to make a tender of; as, to proffer a gift; to proffer services; to proffer friendship.

As adjectives the difference between specious and disingenuous

is that specious is seemingly well-reasoned, plausible or true, but actually fallacious while disingenuous is not noble; unbecoming true honor or dignity; mean; unworthy; fake or deceptive.

As a noun pretense

is (us) a false or hypocritical profession, as, under pretense of friendliness.

As an adjective specious is

seemingly well-reasoned, plausible or true, but actually fallacious.