defaultantadj.
/dᵻˈfɔːlt(ə)nt/, U.S. /dəˈfɔlt(ə)nt/, /diˈfɔlt(ə)nt/, /dəˈfɑlt(ə)nt/, /diˈfɑlt(ə)nt/ rare.
That has failed to fulfil a duty or obligation. Also: involving financial default.
ΘΚΠ
the mind > goodness and badness > wrongdoing > undutifulness > [adjective] > failing in duty
transfugious1611
defectious1630
defaulting1753
derelict1864
defaultant1884
society > morality > duty or obligation > recognition of duty > undutifulness > [adjective] > failing in duty
defaulting1753
derelict1864
defaultant1884
1884 ‘Judge Wiglittle’ 10 Years Police Judge v. 30 It did not transpire that the offending officials had been delinquent, defaultant, or otherwise derelict.
1919 Lima (Ohio) Times-Democrat 6 Nov. 1/4 A plan which succeeded on a former occasion, if the defaultant contract is not made good.
1970 Frederick (Maryland) Post 21 May d5/4 Deposit shall be forfeited and the property resold at the risk and cost of the defaultant purchaser.
This entry has been updated (OED Third Edition, December 2016; most recently modified version published online March 2022).
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adj.1884