Entry 2 senses · 2 variants Webster, 1913 Seldom /(sĕl"dŭm)/ · Sel·dom · IPA /ˈsɛldəm/ adv. a. 01 adv. Rarely; not often; not frequently. 1. Rarely; not often; not frequently. “Wisdom and youth are seldom joined in one.” — Hooker. 02 a. Rare; infrequent. 1. Rare; infrequent.[Archaic.]