lilliputian vs diminutive

lilliputian and diminutive both are nouns.

Word	Noun	Adjective	Verb	Adverb
lilliputian	Yes	Yes	No	No
diminutive	Yes	Yes	No	No

As adjectives, lilliputian and diminutive are synonyms defined as:

Other synonyms of lilliputian include bantam, flyspeck, midget, petite, tiny.

lilliputian (noun)	diminutive (noun)
a very small person (resembling a Lilliputian)	a word that is formed with a suffix (such as -let or -kin) to indicate smallness

lilliputian (adjective)	diminutive (adjective)
very small	very small
(informal) small and of little importance