Traditional　fluorescent　thermometers　are　often　responsive　to　stimuli　such　as　acid,　moisture,　solvents,　light　irradiation,　and　other　stimuli,　thereby　limiting　their　practical　applications.　This　is　further　intensified　by　the　growing　complexity　of　unconventional　scenarios　with　various　interfering　stimuli.　Here,　we　develop　a　versatile　fluorescent　thermometer　featuring　fluorophore　PTF1　dispersed　in　a　polymer　matrix　at　a　low　loading.　At　room　temperature,　the　rigidity　of　polymer　network　is　high,　rendering　PTF1　a　yellow　fluorescence　due　to　its　antirigidochromic　behavior.　Increasing　the　temperature　reduces　the　rigidity　of　PTF1,　effectively　restoring　the　intrinsic　blue　fluorescence　of　PTF1.　Benefiting　from　the　excellent　encapsulation　effect　of　polymer　matrices,　this　thermometer　exhibits　an　exceptional　anti-interference　ability.　Further,　it　could　be　shaped　into　various　forms,　enabling　temperature　measurements　in　diverse　scenarios.　Moreover,　it　could　be　customized　to　irreversible　working　modes,　rendering　the　temperature　history　with　recording　features.　This　work　offers　a　design　of　a　fluorescent　thermometer　with　advanced　features　unattainable　with　conventional　fluorophores.　©　2024　American　Chemical　Society