indicative (adj.)

mid-15c., "that points out, states, or declares" (grammatical), from Old French indicatif (14c.), from Late Latin indicativus "serving to point out," from indicat-, past participle stem of Latin indicare "to point out, show" (see indication). The "mood in the conjugation of a Latin verb whose essential function is to state a fact (as opposed to a wish, supposition or command)" [The Middle English Compendium]. Related: Indicatively.

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Definitions of indicative from WordNet
indicative (adj.)
relating to the mood of verbs that is used simple in declarative statements;
indicative mood
Synonyms: declarative
indicative (adj.)
(usually followed by `of') pointing out or revealing clearly;
actions indicative of fear
Synonyms: indicatory / revelatory / significative / suggestive
indicative (n.)
a mood (grammatically unmarked) that represents the act or state as an objective fact;
Synonyms: indicative mood / declarative mood / declarative / common mood / fact mood