Word Study
synchronical
CIDE DICTIONARY
synchronical, a. [Cf. F. synchronique.].
Happening at the same time; synchronous. [1913 Webster]
ROGET THESAURUS
synchronical
Synchronism
N synchronism, coexistence, coincidence, simultaneousness, simultaneity, concurrence, concomitance, unity of time, interim, isochronism, contemporary, coetanian, synchronous, synchronal, synchronic, synchronical, synchronistical, simultaneous, coexisting, coincident, concomitant, concurrent, coeval, coevous, contemporary, contemporaneous, coetaneous, coeternal, isochronous, at the same time, simultaneously, together, in concert, during the same time, in the same breath, pari passu, in the interim, as one, at the very moment, just as, as soon as, meanwhile.For further exploring for "synchronical" in Webster Dictionary Online