cockamamie

(noun, adjective)

adjective

1. informal term for ridiculous and implausible

- he gave me a cockamamie reason for not going

Similar word(s): implausible, cockamamy

Sentences with cockamamie as an adjective:

- Do not give any more cockamamie reasons for failing to complete your assignment.

noun

1. (US, chiefly dated) A decal, a design that can be transferred to a surface.

2. A foolish or ridiculous person.