Antonyms of adj decisive

4 senses of decisive

Sense 1
decisive (vs. indecisive) -- (determining or having the power to determine an outcome; "cast the decisive vote"; "two factors had a decisive influence")

indecisive (vs. decisive) -- (not definitely settling something; "a long and indecisive war")

Sense 2
decisive -- (unmistakable; "had a decisive lead in the polls")

INDIRECT (VIA definite) -> indefinite -- (vague or not clearly defined or stated; "must you be so indefinite?"; "amorphous blots of color having vague and indefinite edges"; "he would not answer so indefinite a proposal")

Sense 3
decisive (vs. indecisive) -- (characterized by decision and firmness; "an able and decisive young woman"; "we needed decisive leadership"; "she gave him a decisive answer")

indecisive (vs. decisive) -- (characterized by lack of decision and firmness; "an indecisive manager brought the enterprise to a standstill")
        => on the fence (predicate), undecided -- (characterized by indecision; "some who had been on the fence came out in favor of the plan"; "too many voters still declare they are undecided")
        => hesitant, hesitating -- (lacking decisiveness of character; unable to act or decide quickly or firmly)
        => suspensive -- (undecided or characterized by indecisiveness)

Sense 4
critical, decisive -- (forming or having the nature of a turning point or crisis; "a critical point in the campaign"; "the critical test")

INDIRECT (VIA crucial) -> noncrucial -- (of little importance; not decisive)

Similarity of adj decisive

4 senses of decisive

Sense 1
decisive (vs. indecisive) -- (determining or having the power to determine an outcome; "cast the decisive vote"; "two factors had a decisive influence")
       => deciding (prenominal), determinant, determinative, determining (prenominal) -- (having the power or quality of deciding; "the crucial experiment"; "cast the deciding vote"; "the determinative (or determinant) battle")
       => fateful, fatal -- (having momentous consequences; of decisive importance; "that fateful meeting of the U.N. when...it declared war on North Korea"- Saturday Rev; "the fatal day of the election finally arrived")
       => peremptory -- (putting an end to all debate or action; "a peremptory decree")
          Also See-> conclusive#1; crucial#1, important#3

Sense 2
decisive -- (unmistakable; "had a decisive lead in the polls")
       => definite (vs. indefinite) -- (precise; explicit and clearly defined; "I want a definite answer"; "a definite statement of the terms of the will"; "a definite amount"; "definite restrictions on the sale of alcohol"; "the wedding date is now definite"; "a definite drop in attendance")

Sense 3
decisive (vs. indecisive) -- (characterized by decision and firmness; "an able and decisive young woman"; "we needed decisive leadership"; "she gave him a decisive answer")
       => unhesitating, resolute -- (characterized by quickness and firmness; "his reply was unhesitating")
          Also See-> resolute#1

Sense 4
critical, decisive -- (forming or having the nature of a turning point or crisis; "a critical point in the campaign"; "the critical test")
       => crucial (vs. noncrucial), important -- (of extreme importance; vital to the resolution of a crisis; "a crucial moment in his career"; "a crucial election"; "a crucial issue for women")