KEY: Intrenchment.
SYN: Ditch, dyke, moat, circumvallation, encroachment, infringement,trespass.
ANT: Wall, rampart, mound, mole, embankment, glacis, bastion,forbearance, deference, respect.

• Unselfish, [See SEEMLY]
• Unsettle
• Unskillful, [See SETTLE]
• Unsophisticated, SIMPLE_==_key:, Unsound, SOUND_==_key:,
• Unsteady
• Unsuccessful
• Untrodden
• Untruth
• Unusual
• Unwearied
• Unwilling
• Unyielding
• Upbraid
• Uphold
• Upright
• Uproar, [See FLEXIBLE_and_OBSTINATE]
• Uproot
• Upset
• Upshot
• Upstart
• Urbane
• Urbanity
• Urge
• Urgent
• Useful