All occasional antonyms

adjective occasional

• regular — usual; normal; customary: to put something in its regular place.
• common — If something is common, it is found in large numbers or it happens often.
• frequent — happening or occurring at short intervals: to make frequent trips to Tokyo.
• ordinary — of no special quality or interest; commonplace; unexceptional: One novel is brilliant, the other is decidedly ordinary; an ordinary person.
• usual — habitual or customary: her usual skill.
• constant — You use constant to describe something that happens all the time or is always there.
• steady — firmly placed or fixed; stable in position or equilibrium: a steady ladder.