Antonyms of adj ahead

1 sense of ahead

Sense 1
ahead (predicate), in the lead, leading -- (having the leading position or higher score in a contest; "he is ahead by a pawn"; "the leading team in the pennant race")

INDIRECT (VIA up) -> down -- (being or moving lower in position or less in some value; "lay face down"; "the moon is down"; "our team is down by a run"; "down by a pawn"; "the stock market is down today")

Similarity of adj ahead

1 sense of ahead

Sense 1
ahead (predicate), in the lead, leading -- (having the leading position or higher score in a contest; "he is ahead by a pawn"; "the leading team in the pennant race")
       => up (vs. down) -- (being or moving higher in position or greater in some value; being above a former position or level; "the anchor is up"; "the sun is up"; "he lay face up"; "he is up by a pawn"; "the market is up"; "the corn is up")

Antonyms of adv ahead

1 of 7 senses of ahead

Sense 2
ahead, forward -- (toward the future; forward in time; "I like to look ahead in imagination to what the future may bring"; "I look forward to seeing you")
       Antonym of back (Sense 4)
      => back, backward -- (in or to or toward a past time; "set the clocks back an hour"; "never look back"; "lovers of the past looking fondly backward")

Synonyms of adv ahead

7 senses of ahead

Sense 1
ahead, in front, before -- (at or in the front; "I see the lights of a town ahead"; "the road ahead is foggy"; "staring straight ahead"; "we couldn't see over the heads of the people in front"; "with the cross of Jesus marching on before")

Sense 2
ahead, forward -- (toward the future; forward in time; "I like to look ahead in imagination to what the future may bring"; "I look forward to seeing you")

Sense 3
ahead, onward, onwards, forward, forwards, forrader -- (in a forward direction; "go ahead"; "the train moved ahead slowly"; "the boat lurched ahead"; "moved onward into the forest"; "they went slowly forward in the mud")

Sense 4
ahead, in advance, beforehand -- (ahead of time; in anticipation; "when you pay ahead (or in advance) you receive a discount"; "We like to plan ahead"; "should have made reservations beforehand")

Sense 5
ahead -- (to a more advanced or advantageous position; "a young man sure to get ahead"; "pushing talented students ahead")

Sense 6
ahead -- (to a different or a more advanced time (meaning advanced either toward the present or toward the future); "moved the appointment ahead from Tuesday to Monday"; "pushed the deadline ahead from Tuesday to Wednesday")

Sense 7
ahead, out front, in the lead -- (leading or ahead in a competition; "the horse was three lengths ahead going into the home stretch"; "ahead by two pawns"; "our candidate is in the lead in the polls"; "way out front in the race"; "the advertising campaign put them out front in sales")