U

indeterminate

adjective

not determinate; not precisely fixed in extent; indefinite; uncertain.
not clear; vague.
not established.
not settled or decided.
Mathematics.
1. (of a quantity) undefined, as 0/0.
2. (of an equation) able to be satisfied by more than one value for each unknown.
Botany. (of an inflorescence) having the axis or axes not ending in a flower or bud, thus allowing further elongation.

noun

Mathematics. something whose value is not specified: used especially in abstract algebra; a variable.

adjective

uncertain in extent, amount, or nature
not definite; inconclusivean indeterminate reply
unable to be predicted, calculated, or deduced
physics (of an effect) not obeying the law of causality; noncausal
maths
1. having no numerical meaning, as 0.00 or 0/0
2. (of an equation) having more than one variable and an unlimited number of solutions
botany another word for indefinite (def. 4)
(of a structure, framework, etc) comprising forces that cannot be fully analysed, esp by vector analysis

adj.

late 14c., from Late Latin indeterminatus “undefined,” from in- “not, opposite of” (see in- (1)) + determinatus, past participle of determinare (see determine). Related: Indeterminately.

Continuing to grow at the apical meristem or the terminal bud indefinitely, allowing for the development of an ever-increasing number of plant organs such as leaves, stems, or flowers to the side.