greatest

As adjectives the difference between awesome and greatest

is that awesome is causing awe or terror; inspiring wonder or excitement while greatest is (great).

As a noun awesome

is the quality, state, or essence of being or cool; awesomeness.

As an adjective greatest

is (great).

As a determiner least is

(little);the smallest amount of [something.

As an adverb least is

used for forming superlatives of adjectives, especially those that do not form the superlative by adding -est .

As adjectives the difference between greatest and significant

is that greatest is superlative of great while significant is signifying something; carrying meaning.

As a noun significant is

that which has significance; a sign; a token; a symbol.

As adjectives the difference between greatest and incomparable

is that greatest is (great) while incomparable is so much better than another as to be beyond comparison; matchless or unsurpassed.

As adjectives the difference between greatest and finest

is that greatest is superlative of great while finest is superlative of fine.

As a noun finest is

police officers.

As adjectives the difference between greatest and famous

is that greatest is (great) while famous is well known.

As adjectives the difference between greatest and valuable

is that greatest is (great) while valuable is having a great value.

As a noun valuable is

a personal possession such as jewellery, of relatively great monetary value; — usually used in plural form.

As adjectives the difference between grandest and greatest

is that grandest is superlative of grand while greatest is superlative of great.

As adjectives the difference between greatest and superb

is that greatest is (great) while superb is .