underailable

U1N1D2E1R1A1I1L1A1B3L1E1

adjective

That cannot derail, or be derailed.

Scrabble 15
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Meanings

adjectiveunderailable (not comparable)
  1. not comparableThat cannot derail, or be derailed.

    It is claimed that this gives a locomotive which is almost underailable, and that its flexibility eliminates all secondary reactions in bogies and body.

    1953, Railway Gazette, Diesel Railway Traction

Origin

From un- + derailable.

Full word history & related roots →
Cite this entry
APA

underailable. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/underailable

MLA

“underailable.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/underailable. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “underailable,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/underailable.

Source: underailable on Wiktionary, CC BY-SA 4.0.