Antonyms of noun decline

1 of 4 senses of decline

Sense 2
decline, declination -- (a condition inferior to an earlier condition; a gradual falling off from a better state)
       Antonym of improvement (Sense 3)
      => improvement, melioration -- (a condition superior to an earlier condition; "the new school represents a great improvement")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun decline

4 senses of decline

Sense 1
decline, diminution -- (change toward something smaller or lower)
       => decrease, decrement -- (a process of becoming smaller or shorter)

Sense 2
decline, declination -- (a condition inferior to an earlier condition; a gradual falling off from a better state)
       => condition, status -- (a state at a particular time; "a condition (or state) of disrepair"; "the current status of the arms negotiations")

Sense 3
decay, decline -- (a gradual decrease; as of stored charge or current)
       => decrease, decrement -- (a process of becoming smaller or shorter)

Sense 4
descent, declivity, fall, decline, declination, declension, downslope -- (a downward slope or bend)
       => slope, incline, side -- (an elevated geological formation; "he climbed the steep slope"; "the house was built on the side of a mountain")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb decline

7 senses of decline

Sense 1
worsen, decline -- (grow worse; "Conditions in the slum worsened")
       => change state, turn -- (undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election")

Sense 2
refuse, reject, pass up, turn down, decline -- (refuse to accept; "He refused my offer of hospitality")

Sense 3
refuse, decline -- (show unwillingness towards; "he declined to join the group on a hike")
       => react, respond -- (show a response or a reaction to something)

Sense 4
decline, go down, wane -- (grow smaller; "Interest in the project waned")
       => decrease, diminish, lessen, fall -- (decrease in size, extent, or range; "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper")

Sense 5
decline -- (go down; "The roof declines here")
       => drop -- (to fall vertically; "the bombs are dropping on enemy targets")

Sense 6
decline, slump, correct -- (go down in value; "the stock market corrected"; "prices slumped")
       => descend, fall, go down, come down -- (move downward and lower, but not necessarily all the way; "The temperature is going down"; "The barometer is falling"; "The curtain fell on the diva"; "Her hand went up and then fell again")

Sense 7
decline -- (inflect for number, gender, case, etc., "in many languages, speakers decline nouns, pronouns, and adjectives")
       => inflect -- (change the form of a word in accordance as required by the grammatical rules of the language)