"rankest" in the adjective sense
1. rank
very fertile producing profuse growth
"rank earth"
2. rank
very offensive in smell or taste
"a rank cigar"
3. crying, egregious, flagrant, glaring, gross, rank
conspicuously and outrageously bad or reprehensible
"a crying shame"
"an egregious lie"
"flagrant violation of human rights"
"a glaring error"
"gross ineptitude"
"gross injustice"
"rank treachery"
4. absolute, downright, out-and-out, rank, right-down, sheer
complete and without restriction or qualification sometimes used informally as intensifiers
"absolute freedom"
"an absolute dimwit"
"a downright lie"
"out-and-out mayhem"
"an out-and-out lie"
"a rank outsider"
"many right-down vices"
"got the job through sheer persistence"
"sheer stupidity"
5. rank
growing profusely
"rank jungle vegetation"
Source: WordNet® (An amazing lexical database of English)
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