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Definition efficacious

Etymology

From Old French efficacieux, from Latin effic?x (“efficacious”) +‎ -ous, from efficere (“to effect, to accomplish”); see effect.

Adjective

efficacious (comparative more efficacious, superlative most efficacious)

  1. (formal) Effective; possessing efficacy. [from 1520s]

Results 125 Words with the letters EFFICACIOUS

2 3 4 5 6 7 8 9 10
15 letter words with the letters EFFICACIOUS ↑
EFFICACIOUSNESS 29
INEFFICACIOUSLY 32
13 letter words with the letters EFFICACIOUS ↑
EFFICACIOUSLY 29
INEFFICACIOUS 27
11 letter words with the letters EFFICACIOUS ↑
EFFICACIOUS 24
7 letter words with the letters EFFICACIOUS ↑
COIFFES 16
OFFICES 16
SUFFICE 17
6 letter words with the letters EFFICACIOUS ↑
ACCUSE 13
CASEIC 12
COIFFE 15
FACIES 12
FAUCES 13
FIASCO 12
FICOES 12
FUCOSE 13
OFFICE 15
5 letter words with the letters EFFICACIOUS ↑
CAFES 11
CAFFS 14
CAUSE 9
CISCO 11
COCAS 11
COFFS 14
COIFS 11
COSEC 11
COSIE 8
CUFFS 15
CUIFS 12
CUSEC 12
FACES 11
FICES 11
FICUS 12
FIEFS 11
FIFES 11
FOCUS 12
SAICE 8
SAUCE 9
SCOFF 14
SCUFF 15
SECCO 11
4 letter words with the letters EFFICACIOUS ↑
ACES 7
ASCI 7
CAFE 10
CAFF 13
CASE 7
CECA 10
CIAO 7
COCA 10
COFF 13
COIF 10
CUES 8
CUFF 14
CUIF 11
ECUS 8
EFFS 10
FACE 10
FEUS 8
FICE 10
FICO 10
FIEF 10
FIFE 10
FISC 10
FOCI 10
FOES 7
FUCI 11
FUSE 8
ICES 7
OAFS 7
OCAS 7
OFFS 10
SAFE 7
SEIF 7
SICE 7
SOCA 7
SOFA 7
3 letter words with the letters EFFICACIOUS ↑
ACE 6
AFF 9
AIS 3
CIS 6
COS 6
CUE 7
EAU 4
ECU 7
EFF 9
EFS 6
FAS 6
FEU 7
FIE 6
FOE 6
FOU 7
ICE 6
IFF 9
IFS 6
OAF 6
OCA 6
OES 3
OFF 9
OSE 3
SAC 6
SAE 3
SAU 4
SEA 3
SEC 6
SEI 3
SIC 6
SOU 4
SUE 4
USE 4
2 letter words with the letters EFFICACIOUS ↑
AE 2
AI 2
AS 2
EF 5
ES 2
FA 5
FE 5
FI 5
IF 5
IS 2
OE 2
OF 5
OI 2
OS 2
SI 2
SO 2
US 3

You can also try words with the phrase EFFICACIOUS, words starting with the letters EFFICACIOUS, or words ending in the letters EFFICACIOUS.