rankest

Adjective

rank (comparative ranker or more rank, superlative rankest or most rank)

1. (obsolete) Strong in growth; growing with vigour or rapidity, hence, coarse or gross.
   • rank grass
2. (obsolete) Causing strong growth; producing luxuriantly; rich and fertile.
   • rank land
3. (obsolete) Suffering from overgrowth or hypertrophy; plethoric.
   • The moon had spread over everything a thin layer of silver—over the rank grass, over the mud, upon the wall of matted vegetation standing higher than the wall of a temple […]1899 February, Joseph Conrad, “The Heart of Darkness”, in Blackwood’s Edinburgh Magazine, volume CLXV, number M, New York, N.Y.: The Leonard Scott Publishing Company, […], →OCLC, part I
4. (obsolete) Strong to the senses; offensive; noisome.
5. (informal, obsolete) Gross, disgusting, foul.
6. (obsolete) Headstrong; difficult to control.
   • If Safford happens to be driving a "rank" horse, one that insists on getting away fast, he goes along with the rest, […]1949, The New Yorker (volume 25, part 3, page 46)

See all 28 meanings of rank