stock-still vs frozen

stock-still and frozen both are adjectives.

Word	Noun	Adjective	Verb	Adverb
stock-still	No	Yes	No	Yes
frozen	No	Yes	No	No

As adjectives, stock-still and frozen are synonyms defined as:

Other synonyms of stock-still include rooted.

stock-still (adjective)	frozen (adjective)
absolutely still	turned into ice; affected by freezing or by long and severe cold
	devoid of warmth and cordiality; expressive of unfriendliness or disdain
	not convertible to cash
	absolutely still
	(used of foods) preserved by freezing sufficiently rapidly to retain flavor and nutritional value
	incapable of being changed or moved or undone; e.g. "frozen prices"
	not thawed

stock-still (adverb)	frozen (adverb)
without moving or making a sound