irregular

/ɪɹˈɛɡjuːlɐ/

/ˌɪˈɹɛɡjəɫɝ/

irregular

нерегулярный

not following a regular or predictable pattern

синонимы : unpredictable

неправильный

(grammar) describing a word that is not formed in the usual way

антонимы : regular

нерегулярный

not conforming to established rules, patterns, or norms

синонимы : atypical

напр

1. The swimming pool had an irregular shape, like a kidney bean.

2. My periods are irregular. -

3. So some women have irregular periods.

4. Irregular baggages are here.