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Dictionary

Words, grammatical forms and meanings linked to the ontology.

underailable en · ADJ

Etymology

From un- + derailable.

Meanings

  1. (not-comparable) That 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: