Antonyms of adj lucky

3 senses of lucky

Sense 1
lucky -- (occurring by chance; "a lucky escape"; "a lucky guess")

INDIRECT (VIA fortunate) -> unfortunate -- (not favored by fortune; marked or accompanied by or resulting in ill fortune; "an unfortunate turn of events"; "an unfortunate decision"; "unfortunate investments"; "an unfortunate night for all concerned")

Sense 2
lucky (vs. unlucky) -- (having or bringing good fortune; "my lucky day"; "a lucky man")

unlucky (vs. lucky), luckless -- (having or bringing misfortune; "Friday the 13th is an unlucky date")
        => hexed, jinxed -- ((usually used colloquially) causing or accompanied by misfortune)

Sense 3
golden, favorable, favourable, lucky, prosperous -- (presaging or likely to bring good luck; "a favorable time to ask for a raise"; "lucky stars"; "a prosperous moment to make a decision")

INDIRECT (VIA propitious) -> unpropitious -- (not propitious)

Similarity of adj lucky

3 senses of lucky

Sense 1
lucky -- (occurring by chance; "a lucky escape"; "a lucky guess")
       => fortunate (vs. unfortunate) -- (having unexpected good fortune; "other, less fortunate, children died"; "a fortunate choice")

Sense 2
lucky (vs. unlucky) -- (having or bringing good fortune; "my lucky day"; "a lucky man")
       => apotropaic -- (having the power to prevent evil or bad luck)
       => hot -- (having or bringing unusually good luck; "hot at craps"; "the dice are hot tonight")
       => serendipitous -- (lucky in making unexpected and fortunate discoveries)
          Also See-> fortunate#1

Sense 3
golden, favorable, favourable, lucky, prosperous -- (presaging or likely to bring good luck; "a favorable time to ask for a raise"; "lucky stars"; "a prosperous moment to make a decision")
       => propitious (vs. unpropitious) -- (presenting favorable circumstances; likely to result in or show signs of success; "propitious omens"; "propitious gales speeded us along"; "a propitious alignment of planets for space exploration")