sour (adj.) Copy link Outline I. Not sweet1. ăcĭdus2. ăcerbus (opp. suavis)3. ācer (opp. mollis4. ăcūtus5. austērus6. ămārus (bitter7. tristis (rare in lit. sense)8. immītis, e (not mellow)II. Crabbed, peevish, q. v.1. ăcerbus2. ămārus • sour (adj.): I. Not sweet: 1. ăcĭdus: very s. vinegar, acidissimum acetum, Pl. Ps. 2, 4, 49: s. milk, a. lac, Plin. 28, 9, 36, § 135: v. acid (adj.). Of smell, s. breath, a. halitus, id. 30, 4, 9, § 27. Somewhat s., ăcĭdŭlus, sŭbăcĭdus (v. sourish). 2. ăcerbus (opp. suavis): a s. pear, a. pirum, Varr. R. R. 1, 44, fin.: Phaedr. 4, 3, 4: very s., peracerbus: a grape very s. (or harsh) to the taste, uva peracerba gustatu, Cic. Sen. 15, 53. (N.B.--Acerbus is s. because unripe; acidus is s. though ripe.) 3. ācer (opp. mollis: biting, sharp): very s. vinegar, acetum acerrimum, Cels. 4, 4, 3, med.: a s. stomach (i. e. full of sourness), a. stomachus, Hor. S. 2, 4, 59. Join: to mix s. victuals with sweet, dulcibus cibis acres acutosque miscere, Plin. Ep. 7, 3, extr.: very s., pĕrācer: very s. vinegar, peracre acetum, Pl. Bac. 3, 3, 1. 4. ăcūtus: v. supr. (3): sharp. 5. austērus: s. wine, a. vinum, Cels. 3, 24, ad fin.: v. harsh (II.), tart (adj.). 6. ămārus (bitter: opp. dulcis): v. bitter. 7. tristis (rare in lit. sense): fruits of s. flavour, poma sapore t., Ov. Tr. 4, 6, 12. 8. immītis, e (not mellow): s. grape, i. uva, Hor. Od. 2, 5, 10: v. unripe. II. Crabbed, peevish, q. v.: 1. ăcerbus: for there may go forth s. (or crabbed) fellows from the school of Zeno, posse enim acerbos e Zenonis schola exire, Cic. N. D. 3, 31, 77: to put on s. looks, vultus a. sumere, Ov. Tr. 5, 8, 17 (v. also to frown): cf. vultus severior et tristior, Cic. de Or. 2, 71, 289. 2. ămārus: v. ill-tempered. (For s.-looking, torvus, tetricus will serve: v. forbidding, scowling.) Phr.: he looks as s. as a crab, illi caperat (is wrinkled) frons severitudine, Pl. Epid. 5, 1, 3: s. wine, vappa, Plin.: Hor.: wines likely to turn s., vina peccatura, Pall. 11, 14, ad med. Special Phr.: (i.) to be s., ăceo, ui, 2 (of wine), Cato R. R. 148: or expr. by saporem acerbum, etc. (v. supr.) habere: or, acerbo, etc. (v. supr.) sapore esse. (ii.) to turn or become s.: (1.) ăcesco, ăcui, 3: whatever you pour in turns s., quodcunque infundis a., Hor. Ep. 1, 2, 54: Plin. 20, 14, 53, § 147. (2.) coăcesco, ăcui, 3: as not every wine, so not every age turns s., ut non omne vinum, sic non omnis aetas c., Cic. Sen. 18, 65. (3.) ĭnăcesco, ăcui, 3: milk which you may want to turn s., (lac) quod velis i., Plin. 28, 9, 36, § 135. (4.) exăcesco, ăcui, 3 the fig turns s., e. ficus, Col. 12, 17, 1.