Below are the words that matched your query...
Untrue
- (used especially of persons) not dependable in devotion or affection; unfaithful; "a false friend"; "when lovers prove untrue"
- not accurately fitted; not level; "the frame was out of true"; "off-level floors and untrue doors and windows"
- not true to an obligation or trust; "is untrue to his highest opportunity and duty"-Bruno Laske
- not according with the facts; "unfortunately the statement was simply untrue"
Unsatisfied
- worried and uneasy
- not having been satisfied
Unarguable
- against which no argument can be made
Unassailable
- without flaws or loopholes; "an ironclad contract"; "a watertight alibi"; "a bulletproof argument"
- impossible to assail
- immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection"
Unshakable
- without flaws or loopholes; "an ironclad contract"; "a watertight alibi"; "a bulletproof argument"
- marked by firm determination or resolution; not shakable; "firm convictions"; "a firm mouth"; "steadfast resolve"; "a man of unbendable perseverence"; "unwavering loyalty"
Unanswerable
- impossible to answer; "an unanswerable argument"
Unrelenting
- never-ceasing; "the relentless beat of the drums"
- harsh; "the brutal summer sun"; "a brutal winter"
- not to be placated or appeased or moved by entreaty; "grim determination"; "grim necessity"; "Russia's final hour, it seemed, approached with inexorable certainty"; "relentless persecution"; "the stern demands of parenthood"
- pitiless
Unpredictable
- not occurring at expected times
- unknown in advance; "an unpredictable (or indeterminable) future"
- not capable of being foretold
Unceasing
- uninterrupted in time and indefinitely long continuing; "the ceaseless thunder of surf"; "in constant pain"; "night and day we live with the incessant noise of the city"; "the never-ending search for happiness"; "the perpetual struggle to maintain standards in a democracy"; "man's unceasing warfare with drought and isolation"; "unremitting demands of hunger"
- continuing forever or indefinitely;