Inefficaciously [adverb]

● Badly

● Inadequately

● Poorly

● Weakly

● Ineffectually

● Inefficaciously

● Ineffectively

● Ineffective

● Ineffectual

● Impuissant

● Efficacy

● Inefficient

● Efficacious

● Effectiveness

● Opposability

● Nonsolution

● Intempestively

● Coefficacy

● Prevailment

● Unthriftily

● Agonistical

● Adiaphorous

● Impotent

● Dietetically

● Inofficiously

● Inadequate

● Unfruitfully

● Dilatorily

● Privatively

● Intempestive

● Futilitarian

● Unreasoningly

● Unempirically

● Arse around

● Effectuous

● Unobliging

● Counterproductive

● Brunonian

● Petitionarily

● Inoperativeness

● Incapably

● Contrarious

● Injuriousness

● Inhabile

● Useless

● Abstinently

● Torpedinous

● Futile

● Nocive

● Punily

● Potentness

● Destitutely

● Unprobably

● Null and void

● Gateway drug

● Noyous

● Inexpediently

● Disutilize

● Ungenitured

● Awkly

● Inconsistent

● Effectual

● Infirmly

● Insulse

● Untimeously

● Incompossible

● Woundily

● Unsubstantially

● Disadvantageable

● Conducibly

● Paltrily

● Abandonedly

● Adverseness

● Unfavorableness

● Praiseworthily

● Inefficacy

● Inaptness

● Preventingly

● Weetless

● Undirect

● Pregnantly

● Dotardly

● Irresolvedly

● Apagoge

● Semblably

● Inofficious

● Unproductive

● Uninstructively

● Unreliable

● Effectible

● Feeble

● Adiaphoron

● Unsatisfactory

● Overweak

● Incompetent

● Unforceful

● Lead astray

● Venally

● Abstractively

● Indocile

● Nugatory

● Unpersuasiveness

● Hinderling

● Acataleptic

● Undesignedly