75 entries under careless topic. ×

1
punchy(unstable, unreasonable, unpredictable, changeable)
1
purposeless(casual, frivolous, random, haphazard)
1
spontaneous(chance, casual, arbitrary, unplanned)
1
treacherous(adjective, loose, uncertain, unstable)
1
tricky(adjective, weak, loose, uncertain)
1
unconscious(casual, arbitrary, unplanned, accidental)
1
unconsidered(casual, random, haphazard, arbitrary)
1
unpremeditated(chance, casual, arbitrary, unplanned)
1
unreasonable(adjective, unstable, impulsive, unpredictable)
1
unthinking(casual, arbitrary, unplanned, accidental)
1
up and down(expression, idiom, unstable, unreasonable)
1
yo-yo(adjective, lively, active, unstable)
0
featherbrained(adjective, unreliable, changeable, variable)
0
frothy(adjective, inconstant, giddy)
0
lightheade(adjective, inconstant, giddy)
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APASmart Define. (2016). erratic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/erratic/thesaurus/synonyms
ChicagoSmart Define. 2016. "erratic thesaurus" https://smartdefine.org/erratic/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, erratic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/erratic/thesaurus/synonyms>.
MLASmart Define. "erratic thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/erratic/thesaurus/synonyms>