quadriennial

English

Adjective

quadriennial (not comparable)

1. Alternative form of quadrennial
   • 1964 August, “News and Comment: The threat from BEA”, in Modern Railways, page 84:

     It is now imperative that this improvement is a continuing process, not a series of cautious tri- or quadriennial steps, interspersed by protracted passenger surveys, financial re-appraisals and deliberation in endless committees.

Noun

quadriennial (plural quadriennials)

1. Alternative form of quadrennial