Intrenchment. Ditch, dike, fortification, earthwork, moat; defense, protection, shelter, invasion, inroad, encroachment, infringement, trespass.
Ant. Wall, rampart, mole, embankment, mound, bastion; forbearance, deference, respect.
Intrepid. Bold, brave, fearless, undaunted, courageous, valorous, unterrified, dauntless, chivalrous, heroic, undismayed, unawed, valiant, doughty.
Ant. Cautious, timid, fearful, cowardly, dismayed, terrified.
Intricacy. Complexity, complication, entanglement, perplexity, difficulty, intricateness, obscurity, confusion.
Ant. Directness, obviousness; system, method; disposition, array.
Intricate. Involved, perplexed, complicated, entangled, complex; mazy, labyrinthine, tortuous.
Ant. Simple, direct, obvious, plain, uninvolved.
Intrigue. Plot, scheme, cabal, conspiracy, machination, artifice, cunning, duplicity, trickery, chicanery, ruse; liaison, amour.
Ant. Insurrection, assault, rebellion, force, violence; sincerity, candor, honesty, openness, straightforwardness.