Synonyms of par for the course

adjectiveNormal; common; to be expected. (Often connotes something undesirable).

• predictableAble to be predicted.
• typicalNormal, average; to be expected.
• unsurprisingNot surprising; expected.
• usualMost commonly occurring; typical.
• averageTypical.
• basicUnremarkable or uninteresting; boring; uncool.
• bog-standardUtterly basic, ordinary, or standard; unremarkable, unexceptional, etc.
• commonSimple, ordinary or vulgar.
• common as bums Australia, USVery common or mundane (in various senses).
• common as dirtExtremely common.
• common as muck UKVery common (in various senses).
• common as pig tracksVery common or frequently encountered; not at all rare.
• dime a dozen Australia, US
• everydayCommonplace, ordinary.
• frequentDone or occurring often; common.
• generalPrevalent or widespread among a given class or area; common, usual.
• habitualRegular or usual.
• nonrareNot rare.
• pedestrianOrdinary, dull; everyday; unexceptional.
• plainSimple in habits or qualities; unsophisticated, not exceptional, ordinary.
• quotidianHaving the characteristics of something which can be seen, experienced, etc, every day or very commonly.
• regularHaving the expected characteristics or appearances; normal, ordinary, standard.
• routinaryInvolving, or pertaining to, routine; customary.
• routineRegular; habitual.
• ten a penny UKSo common as to be practically or almost worthless.
• two a penny UKVery common; cheap.
• workadaySuitable for everyday use.
• medial
• commonplaceOrdinary; not having any remarkable characteristics.
• common-and-garden UKOrdinary, standard.
• common-or-garden Ireland, UKOrdinary, standard.
• congruent
• consistent
• conventionalOrdinary, commonplace.
• customary
• expectedAnticipated; thought to be about to arrive or occur.
• garden varietyOrdinary, common, or unexceptional.
• improminentNot prominent.
• mundaneOrdinary; not new; part of the mainstream culture.
• naturalAs expected; reasonable, normal; naturally arising from the given circumstances.
• normal
• ordinaryBeing part of the natural order of things; normal, customary, routine.
• par
• plain vanillaSynonym of garden variety.
• run-of-the-millOrdinary; not special.
• standardFalling within an accepted range of size, amount, power, quality, etc.
• standard issueNot special or remarkable; conventional.
• unexceptionalNot exceptional.
• unremarkableNot remarkable.
• unstrangeNot strange.
• vulgarCommon, usual; of the typical kind.
• wakeadayMundane (as one wakes up to each day).