As an adjective phlogistic

is pertaining to phlogiston.

As an adverb phlogistically is

in a phlogistic way.

As an adjective unnotable

is not notable.

As an adverb unnotably is

in an unnotable way.

As adjectives the difference between notable and unnotable

is that notable is (obsolete) useful; profitable or notable can be worthy of notice; remarkable; memorable; noted or distinguished while unnotable is not notable.

As a noun notable

is a person or thing of distinction.

Insignificant is a synonym of unnotable.

As adjectives the difference between insignificant and unnotable

is that insignificant is not significant; not important, consequential, or having a noticeable effect while unnotable is not notable.

As nouns the difference between tourmaline and elbaite

is that tourmaline is a complex black or dark coloured borosilicate mineral while elbaite is a sodium-lithium-aluminium borosilicate mineral of the tourmaline group, prized as a gemstone.

As nouns the difference between gemstone and elbaite

is that gemstone is a gem, usually made of minerals while elbaite is (mineral) a sodium-lithium-aluminium borosilicate mineral of the tourmaline group, prized as a gemstone.

As nouns the difference between nucleoside and orotidine

is that nucleoside is nucleoside while orotidine is (biochemistry) a nucleoside formed by reaction of orotic acid with ribose.

As nouns the difference between ribose and orotidine

is that ribose is a naturally occurring pentose sugar, which is a component of the nucleosides and nucleotides that comprise the nucleic acid biopolymer, RNA. It is also found in riboflavin while orotidine is a nucleoside formed by reaction of orotic acid with ribose.

As a noun cyberactivism is

activism facilitated by the internet.

As nouns the difference between cyberactivism and cyberactivist

is that cyberactivism is activism facilitated by the internet while cyberactivist is a person involved in cyberactivism.