G0275
ἀμέριμνος
untroubled
ἀμέριμνος, -ον (μέριμνα), [in LXX: Wis.6:15 7:23 * ;] free from anxiety or care: Mat.28:14, 1Co.7:32 (for exx., see MM, VGT, see word).† (AS)
Full Thayer's lexicon entry
ἀμέριμνος — amérimnos
ἀμέριμνος,, (μέριμνα), free from anxiety, free from care: Mat 28:14; 1Co 7:32 (free from earthly cares). (Wis 6:16 Wis 7:23; Herodian, 2, 4, 3; 3, 7, 11; Anth. 9, 309, 5; (in passive sense, Sophocles Ajax 1206).)
2 occurrences
Matthew (1), I Corinthians (1)