na-adjective, noun which may take the genitive case particle 'no', noun
nonexistent; nothing at all; completely lacking
Emphatic word meaning that something is entirely absent. Often used in formal or written contexts. The gloss 'bugger-all' is vulgar slang and should be used with caution.
He has absolutely no motivation.
There is absolutely no evidence for his story.
この地域では犯罪は皆無に等しい。
Crime is virtually nonexistent in this area.
その計画が成功する可能性は皆無に等しい。
The chance of that plan succeeding is next to nil.
絶無 and 皆無 both mean 'utterly nonexistent', but 絶無 is even more literary and rare in everyday speech.
皆無 means something is completely absent, while 豊富 means it exists in abundance.
満々 describes a feeling or quality overflowing (e.g. 自信満々), while 皆無 describes it being completely absent (e.g. 自信皆無).
皆目 is an adverb used with a negative verb (皆目わからない, 'not at all understand'), whereas 皆無 is a noun/na-adjective that stands alone to mean 'nonexistent'.
Compound of 皆 (all, everyone) and 無 (nothing, nonexistent). The combination literally means 'all nothing', emphasizing total absence.