English-Thai Dictionary

inefficacious

ADJ ซึ่ง ไม่ มีประโยชน์  ซึ่ง ไม่ได้ผล  powerless ineffectual ineffective sueng-mai-me-pra-yod

 

inefficaciously

ADV อย่าง ไม่ได้ผล เป็นที่พอใจ 

 

inefficaciousness

N ความ ไม่ได้ผล เป็นที่พอใจ 

 

Webster's 1828 Dictionary

INEFFICACIOUS

a.[L. inefficax; in and efficax, efficio, to effect; ex and facio, to make. ] Not efficacious; not having power to produce the effect desired, or the proper effect; of inadequate power or force.
Ineffectual, says Johnson, rather denotes an actual failure, and inefficacious, an habitual impotence to any effect. But the distinction is not always observed, nor can it be; for we cannot always know whether means are inefficacious, till experiment has proved them ineffectual; nor even then, for we cannot be certain that the failure of means to produce an effect is to be attributed to habitual want of power, or to accidental and temporary causes.
Inefficacious is therefore sometimes synonymous with ineffectual.

 

INEFFICACIOUSLY

adv. Without efficacy or effect.

 

INEFFICACIOUSNESS

n.Want of power to produce the effect, or want of effect.

 

Webster's 1913 Dictionary

INEFFICACIOUS

In *ef `fi *ca "cious, a. Etym: [Pref. in- not + efficacious: cf. F.inefficace, L. inefficax.]

 

Defn: Not efficacious; not having power to produce the effect desired; inadequate; incompetent; inefficient; impotent. Boyle. The authority of Parliament must become inefficacious. .. to restrain the growth of disorders. Burke.

 

Note: Ineffectual, says Johnson, rather denotes an actual failure, and inefficacious and habitual impotence to any effect. But the distinction is not always observed, nor can it be; for we can not always know whether means are inefficacious till experiment has proved them ineffectual. Inefficacious is therefore sometimes synonymous with ineffectual.

 

INEFFICACIOUSLY

INEFFICACIOUSLY In *ef `fi *ca "cious *ly, adv.

 

Defn: without efficacy or effect.

 

INEFFICACIOUSNESS

INEFFICACIOUSNESS In *ef `fi *ca "cious *ness, n.

 

Defn: Want of effect, or of power to produce the effect; inefficacy.

 

New American Oxford Dictionary

inefficacious

in ef fi ca cious |ˈinefiˈkāSHəs ˈɪnɛfɪˈkeɪʃəs | ▶adjective not producing the desired effect. DERIVATIVES in ef fi ca cy noun, in ef fi ca cious ly adverb

 

Oxford Dictionary

inefficacious

inefficacious |ˌɪnɛfɪˈkeɪʃəs | ▶adjective not producing the desired effect. DERIVATIVES inefficacy |ɪnˈɛfɪkəsi |noun

 

Oxford Thesaurus

inefficacious

inefficacious adjective the old way of doing things was suddenly inefficacious. See ineffective.