half-hourly
Speech parts
1. half-hourly - Adjective
2. half-hourly - Adverb
3. half-hourly - Adjective Satellite
Meaning
Done or happening at intervals of half an hour.
Source: Webster's dictionarySynonyms
diurnal
range
triennial
daily
annually
alternate
interval
monthly
periodic
periodical
nightly
biennial
hourly
bimonthly
half-hour
Show all synonyms
Antonyms
Examples
An intensive service is provided, with service frequencies ranging from every 10 minutes (3 ferries in service) at peak times, to half-hourly (1 ferry in service) at night.
This channel also provides half-hourly weather summaries by forecasters from the BBC Weather centre and the sports news from the BBC Sport centre at MediaCityUK.