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fiducial

adjective

/fɪˈdjuːʃəl/

Meaning

based on trust or confidence; serving as a standard of reference

The fiducial point on the map ensures accurate measurements.

trustworthy, reliable, standard, benchmark

unreliable, doubtful

fiducial marker, fiducial point, fiducial standard

deeply established; firmly fixed

Relating to or characterized by industry.

Of the highest quality, excellence, or standing.

unable to make decisions quickly; hesitant; wavering

Related to the writing of letters; expressed in or through letters.

Having or showing great energy or enthusiasm in pursuit of a cause or objective; fervent.