D defs.my
Entry 2 senses Webster, 1913

Critically

· Crit·ic·al·ly · IPA /ˈkɹɪt.ɪk.li/
01 adv. In a critical manner; with nice discernment; accurately; exactly.
  1. 1.
    In a critical manner; with nice discernment; accurately; exactly.
    Critically to discern good writers from bad.” Dryden.
  2. 2.
    At a crisis; at a critical time; in a situation, place, or condition of decisive consequence; as, a fortification critically situated.
    “Coming critically the night before the session.” Bp. Burnet.