Pronunciation: (su-lis'i-tus),[key] —adj. 1. anxious or concerned (usually fol. by about, for, etc., or a clause): solicitous about a person's health. 2. anxiously desirous: solicitous of the esteem of others. 3. eager (usually fol. by an infinitive): He was always solicitous to please. 4. careful or particular: a solicitous housekeeper.