irregular Antonyms

regular unremitting systematic symmetrical symmetric sure successional storey stock steady staunch standard stable spick tabular taffrail taxonomic unimpeachable uniform unfailing undulatory typical typal trusty trustworthy true trodden timed tier sound sonant repeated reiterative regimentals rectilineal quotidian putty puritanic puristic proportional principled prescribed predictable representative reproachless retentive smooth sleek silky silken