na
dir
Plural
nadirs
1
the moment in which a situation or life is at its lowest or worst
- After losing his job and his home, he felt he had reached the nadir of his life.
- The company's profits hit their nadir during the financial crisis.
- She realized she was at her emotional nadir after the breakup.
- His health reached its nadir after months of neglect and stress.
- The team's performance hit a nadir last season, with the fewest wins in years.
Synonyms:
2
the point on the celestial sphere directly beneath an observer, exactly opposite the zenith
- At local midnight on the equinox, the sun stands at its nadir—90° below the horizon.
- The satellite's camera was configured for nadir viewing to capture vertical ground imagery.
- Navigators mark the nadir on their star charts to orient telescopes toward the Earth.
- During the simulation, virtual meteors were tracked from zenith through to their nadir.
- Astronomers measure atmospheric glow by comparing zenith readings with those from the nadir.
Antonyms: