Source : WordNet®

unvarying
     adj 1: persistent in occurrence and unvarying in nature;
            "maintained a constant temperature"; "a constant
            beat"; "principles of unvarying validity"; "a steady
            breeze" [syn: {changeless}, {constant}, {invariant}, {steady}]
     2: lacking variety [syn: {unvaried}] [ant: {varied}]
     3: always the same; showing a single form or character in all
        occurrences; "a street of uniform tall white buildings"
        [syn: {uniform}] [ant: {multiform}]