semiregular
Sometimes but not always
Semiregular means occurring or appearing at somewhat consistent but not strictly fixed intervals.
A semiregular visitor shows up often enough to be expected but without a predictable schedule.
In astronomy, a semiregular variable is a star whose brightness changes in roughly periodic cycles: The semiregular pulsations made it difficult to classify.
Rhythmic pulse or strike
- cadenceRhythmic pulse or pattern
- tempoRate of musical performance
- pulseArterial blood throb
- syncopationStressed unexpected beats
meter · measure · ostinato · polyrhythm · asymmetrical · compound · subdivided · accented
Surface-covering arrangement
- ArchimedeanOf a Syracusan polymath
- truncatedCut off abruptly
- snubDeliberate dismissive rejection
- prismLight-splitting optical element
uniform · mosaic · hexagonal · triangular · square · polygon · lattice · Penrose
Occurring irregularly, infrequently
- occasionalHappening at intervals
- periodicOccurring at intervals
- episodicOccurring in distinct segments
- infrequentHappening only occasionally
erratic · discontinuous · interrupted · fitful · scattered · patchy · unpredictable · fluctuating
beat
Rhythmic pulse or strike
syncopation · meter · measure · ostinato · polyrhythm · asymmetrical · compound · subdivided · accented · phrasing
tiling
Surface-covering arrangement
- ArchimedeanOf a Syracusan polymath
- truncatedCut off abruptly
- snubDeliberate dismissive rejection
prism · uniform · mosaic · hexagonal · triangular · square · polygon · lattice · Penrose · dual
sporadic
Occurring irregularly, infrequently
- occasionalHappening at intervals
- periodicOccurring at intervals
- episodicOccurring in distinct segments
infrequent · erratic · discontinuous · interrupted · fitful · scattered · patchy · unpredictable · fluctuating · inconsistent
weave
Interlace strands into fabric
tartan · plaid · herringbone · argyle · chevron · jacquard · quilting · embroidery · motif · repeat
semiregularregular
Occurring at fixed intervals
constant · irregular · consistent · sporadic · predictable
regular, regularly, regulate, irregular, regulation, regulated, regularity, regulating, regulator