> as lemmas
undownable
undownable adj.
Brit. 
/(ˌ)ʌnˈdaʊnəbl/
, /(ˌ)ʌnˈdaʊnəbl/U.S. /ˌənˈdaʊnəb(ə)l/
/ˌənˈdaʊnəb(ə)l/ΚΠ
1894 Rural New-Yorker 28 July 477/3 He is pretty well known as the undownable fighter of the harrow trust.
1957 Sci. Amer. Apr. 50/2 The undownable question remained: Why were tau and theta [particles] exactly alike in every respect except this one?
2002 A. J. Bellamy Kosovo & Internat. Society vi. 168 The loss of what was considered to be a virtually ‘undownable’ aircraft was a huge blow.
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as lemmas
- obedient
- obedient plant
- obediential
- obedientially
- obedientialness
- obedientiar
- obedientiaries
- obedientiary
- obedientiary account
- obedientiary department
- obedientiary office
- obedientiary roll
- obedientiary system
- obediently
- obedientness
- obeisance
- obeisances
- obeisancy
- obstructively
- obstructiveness
- obstructivenesses
- obstructives
- obstructivism
- obstructor
- obstructors