Antonyms of adj inconstant

1 sense of inconstant

Sense 1
inconstant (vs. constant) -- (likely to change frequently often without apparent or cogent reason; variable; "inconstant affections"; "an inconstant lover"; "swear not by...the inconstant moon"- Shakespeare)

constant (vs. inconstant) -- (steadfast in purpose or devotion or affection; "a man constant in adherence to his ideals"; "a constant lover"; "constant as the northern star")
        => steadfast, staunch, unswerving -- (firm and dependable especially in loyalty; "a steadfast ally"; "a staunch defender of free speech"; "unswerving devotion"; "unswerving allegiance")
        => unfailing, unflagging -- (unceasing; "unfailing loyalty"; "unfailing good spirits"; "unflagging courtesy")

Similarity of adj inconstant

1 sense of inconstant

Sense 1
inconstant (vs. constant) -- (likely to change frequently often without apparent or cogent reason; variable; "inconstant affections"; "an inconstant lover"; "swear not by...the inconstant moon"- Shakespeare)
       => false, untrue -- ((used especially of persons) not dependable in devotion or affection; unfaithful; "a false friend"; "when lovers prove untrue")
       => fickle, volatile -- (marked by erratic changeableness in affections or attachments; "fickle friends"; "a flirt's volatile affections")
          Also See-> changeable#2, changeful#1; unfaithful#1; unstable#1; variable#1; volatile#1