MOURNFUL Copy link • MOURNFULSorrowful, tristis; maestus. Causing sorrow, tristis, miserandus, commiserandus, miseratione dignus (of persons and things. ☞ Miserabilis in this sense is not found in the best prose): dolendus, lugendus (of things = deserving of pity). Expressive of sorrow, lamentabilis; lugubris.