Source : Webster's Revised Unabridged Dictionary (1913)

Constantly \Con"stant*ly\, adv.
   With constancy; steadily; continually; perseveringly; without
   cessation; uniformly.

         But she constantly affirmed that it was even so.
                                                  --Acts. xii.
                                                  15.

Source : WordNet®

constantly
     adv 1: seemingly uninterrupted; "constantly bullied by his big
            brother"; "was perpetually answering the doorbell"
            [syn: {perpetually}]
     2: without variation or change; "constantly kind and gracious"
     3: without interruption; "the world is constantly changing"