unregularity

Từ điển WordNet v3.1 - WordNet Dictionary

noun

not characterized by a fixed principle or rate;
at irregular intervals
• Syn:
irregularity
• Ant:
regularity (for: irregularity)
• Derivationally related forms:
irregular (for: irregularity)
• Hypernyms:
quality
• Hyponyms:
inhomogeneity, fitfulness, jerkiness, intermittence, intermittency,
fluctuation, wavering, randomness, haphazardness, stochasticity, noise,
unevenness, variability, unsteadiness