"Unobservance" is a word in ENGLISH

Lost; adrift; hence, wanting; careless; neglectful; unfaithful.

The act of disregarding, or the state of being disregarded; intentional neglect; omission of notice; want of attention; slight.

fálta - (Sp.) Fault, deficiency, defect, omission, default, want, lack, failure; to fail to, neglect, commit a fault, to default, …

Want of attention, or failure to pay attention; disregard; heedlessness; neglect.

Want or neglect of cultivation or culture.

Want or neglect of observance.

Neglect or want of observation.

Want of vigilance; neglect of watching; carelessness.

lípas - To shun, avoid, turn away from, neglect, take no notice of, deviate, digress; omit, be disobedient. Buút siá …

Neglect or failure to prepare; want of preparation.