infrequent
US
UK infrequent adj: (not happening frequently)
SC 较少发生的 jiào shǎo fā shēng de
SC 很少发生的 jiào shǎo fā shēng de，hěn shǎo fā shēng de
SC 罕见的 jiào shǎo fā shēng de，hǎn jiàn de
TC 罕見的
TC 罕見的
Grandma was saddened by my infrequent visits to the nursing home.