An extremely difficult, if not impossible, task.

(informal) Skeptical, not easily convinced and requiring proof.

(politics, military, idiomatic) Gradual unplanned expansion of the objectives, scope, and/or cost of a project, especially a military mission.

Third-person singular simple present indicative form of missay

(transitive, archaic) To speak ill of (someone). / (obsolete, intransitive) To say something erroneous; to speak wrongly.

present participle of missay

A mistake in speech.

simple past tense and past participle of missay

(military) A ground-based missile that can target other objects on the ground.

(military) A missile that is fired from an aircraft to the ground.