sketch out vs adumbrate

sketch out and adumbrate both are verbs.

Word	Noun	Adjective	Verb	Adverb
sketch out	No	No	Yes	No
adumbrate	No	No	Yes	No

As verbs, adumbrate is a hypernym of sketch out; that is, adumbrate is a word with a broader meaning than sketch out:

sketch out: indicate roughly
adumbrate: describe roughly or briefly or give the main points or summary of

Other hypernyms of sketch out include outline, sketch.

sketch out (verb)	adumbrate (verb)
indicate roughly	describe roughly or briefly or give the main points or summary of
	give to understand