infrequently

词形变化：

副词: infrequently | 名词: infrequence |

同义词：

seldom | rarely | uncommonly | occasionally | intermittently | once in a blue moon | irregularly | now and then | once in a while | fitfully |

反义词：

frequently |

词义辨析：

同义参见:

seldom

反义参见:

frequently