Synonyms for by-chance

Adverb

1. incidentally, accidentally, by chance

usage: in an incidental manner; "these magnificent achievements were only incidentally influenced by Oriental models"

2. perchance, by chance

usage: through chance, "To sleep, perchance to dream.."

3. haply, by chance, by luck

usage: by accident; "betrayed by a word haply overheard"

4. by chance, accidentally, circumstantially, unexpectedly

usage: without advance planning; "they met accidentally"