infrequent visits
infrequent contact
infrequent changes
relatively infrequent
A: Do you see him often?
A：你经常见到他吗？
B: No, our meetings are quite infrequent.
B：不，我们的见面并不频繁。
1) 不经常的
2) 罕见的
3) 稀少的
不经常的，罕见的
adjective
1. Not occurring often; rare.
Synonym: rare, uncommon