(n) a steep, narrow waterfall; something falling or rushing forth in quantity; (v) to flow downward ( like a waterfall)

Synonyms: (v) plunge, rush, tumble

Antonyms: (n) drip,drop;(v) trickle, ooze

(adj) cranky, ill-tempered; full of odd whims

Synonyms: grumpy, grouchy, crabby, disagreeable

Antonyms: sociable, friendly, agreeable, amiable

(n) to size, shape, or arrangment of something

Synonyms: layout, design. 

(adj.) blocked so that nothing can go though

Synonyms: Closed, impenetrable

Antonyms: unblocked, clear, open, fit for travel. 

(adj.) warlike, fond of fighting; relating to war, the army, or military life. 

Synonyms: military, hostile, bellicose

Antonyms: peace-loving, peacable, pacific, unwarlike.